Friday, September 29, 2017

MyHeritageDNA Matching Issues

I'm amazed, just not a good way
I'm going to illustrate why your DNA match list at MyHeritageDNA shouldn't be trusted. This has been touched on in a few other blogs (see here and here), but I want to highlight and update some details which are really very concerning.

The main problem is that the system is clearly including a high percentage of either false positive matches, or false negatives - and more than that, they are not necessarily weak matches with only small segments shared. Granted, false positives are a part of DNA matching no matter what company you test with, the nature of DNA means there are always going to be matches known as "Identical by State/Type" (IBS or IBT) versus "Identical by Descent" (IBD). Not to be confused with the medical bowel conditions using the same abbreviations, IBS matches are ones which share small amounts of DNA with you by chance, making them false positives, versus Identical by Descent which means your shared DNA comes from a common ancestor. IBS matches are a part of DNA matching no matter what - however, they only share small segments of DNA with you. This is why most companies have a cut off point where any match sharing no segments above about 7, 6, or 5 cM is automatically excluded, in attempts to reduce the amount of IBS/false positive matches included. The smaller amount of DNA you share, the more likely it is an IBS match. According to ISOGG, "False positive matching rates of between 12% and 23% have been reported for Family Finder data, and up to 34% at Ancestry using their current algorithm." So this is a normal part of DNA matching.

My closest match on MyHeritage is not a match to either my
mother or father
The trouble is, not only is MyHeritageDNA's rates of false positives much higher (around 60% according to my results and others), but more alarmingly, they are not all matches who share only small segments at the bottom of your list like normal IBS matches do. Once you get into the more distant cousins in your match list, you know that some of them are going to be IBS. However, when your top, closest match (after immediate family) who shares 89.5 cM with you (a significant amount), doesn't match either your mom or dad, you know something is very wrong. They are not just expected IBS matches, there is clearly a problem with the DNA matching system.

In fact, MyHeritage's cut off point for minimum segment size to qualify as a match appears to be 12 cM (none of my matches had a longest segment below this), which should almost assure that all the matches are IBD, not IBS (the normal cut off points are typically 5-7 cM)... and yet about 63% of my matches are clearly false positives. One of the blogs I linked to above seems to suggest these false positives are the result of imputed data (explained on their blog). While I don't fully understand imputed data, the blog is written by a professional scientist and therefore a reliable source.

Of course, it's also possible instead of being false positives for me, some of them are legit matches to me and false negatives for my parents, but here again, to have such a high match to me not turning up for either of my parents, something is clearly still wrong. If that's the case, it makes you wonder how many strong, legit matches are missing from my own match list too. Supporting the false negatives theory is the fact that none of my matches are shared matches with my Dad (don't worry, he and I match as father/child at all venues so there's no question he is my father). One could argue that's just because anyone on my dad's side who has tested is too distant to also match me, but that would have to mean I also wouldn't have any shared matches with my paternal grandfather, and yet I do. DNA doesn't skip a generation - how can I have shared matches with my paternal grandfather, but not my father, unless they are false negatives for my dad?

Of lesser concern is MyHeritage's relationship estimate ranges, which are often as specific as "1st cousin twice removed - 4th cousin", for example. No other company attempts to be as specific as this because there is so much overlap in how much DNA may be shared for different relationship types and degree. Looking at the chart to the right, you'll see that a 1st cousin twice removed is lumped into the same group, and therefore the same range of possible shared DNA, as a 2nd cousin. So why isn't the estimated range 2nd-4th cousins instead? Granted, relationship estimates take other things into consideration - not only the total amount of DNA shared, but over how many segments, and how long those segments are. Even so, if no other company is able to be as specific as 1st cousins twice removed instead of 2nd cousins, how have MyHeritage managed it? It also makes it difficult for people to understand their possible relationship with a match, since a lot of people don't even understand what "removed" means to begin with, and even those that do may have trouble knowing what relationships would be within a range that included a "removed". However, since the relationship range is only an estimate anyway, it's not a huge concern, just more of an annoyance.

I should note that all my tests (mine, my mom's, dad's, and paternal grandfather's) were transfers, meaning I had tested with another company and then uploaded my raw DNA data to MyHeritageDNA. I did not buy a test with MyHeritageDNA, and I've seen other blogs saying this makes a difference. However, since the matching database and algorithms are all the same regardless of whether you uploaded or bought a test, I don't see how this could be the case. If there's a false match in my list, then I am a false match in their list, regardless of whether one, both, or neither of us tested directly with MyHeritageDNA.

When you combine this very serious matching problem with the fact that their ethnicity report is also seemingly inferior for most people compared to other companies, it really makes their DNA test pretty worthless.Your mileage may vary regarding the ethnicity report, and of course DNA ethnicity reports are only estimates anyway, but in my experience, and that of many others, it is the least accurate out of all 4 of the big DNA genealogy companies. I highly recommend you don't get sucked in by their long running and continually reduced sales, but instead test with a more reliable company (even if it costs more) and then you can upload your raw DNA data to MyHeritage for free. Because that's about what their results are worth.

UPDATE (01/11/2018): Today I checked my kits' DNA matches at MyHeritage and so far, it looks like much of these issues have finally been resolved. The match in question who shared a significant amount of DNA with me but wasn't a match to either of my parents is now showing as a match to my dad and my paternal grandfather. In fact, my dad's kit now has a lot more matches than he had before (he previously only had 19 matches), many of them matches to me too, resolving the problem that we had no matches in common at first (except each other). Several of his original matches and now missing, suggesting they may have been false positives. And several of those still present have seen updates to how much DNA they share. So there's been a lot of changes, and it looks like they are good ones - matches now seem to make a lot more sense. Now I'm just looking forward to seeing updates in their ethnicity report.

Tuesday, September 19, 2017

A Gedmatch Admixture Guide: Parts 3 and 4

Continuing on from Parts 1 and 2 where I covered the different projects and calculators available for Admixture Proportions and what Oracle is and how to read it, I've had some requests to cover the other viewing options available like Admixture Proportions by Chromosome and Chromosome Painting. So that's what I'll be covering in Parts 3 and 4. For Part 5 on Spreadsheets, click here.

Part 3 - Admixture Proportions by Chromosome

How to find it: From your Gedmatch home page, under "Analyze your data" and then "DNA raw data", choose the option for Admixture (Heritage)" like you did in Part 1, but this time you're going to select " Admixture Proportions by Chromosome" from the bullet list. Be sure to select a project and then calculator and put in your kit number like normal. I would go with whatever calculator you found reflected your known ancestry best. If you haven't read Part 1 yet, you should do so first.

Admixture Proportions by Chromosome shows you your admixture proportions as broken down by individual chromosome; or, in other words, what percentages of each chromosome are most commonly found in which populations/ethnicity. This gives you a much more detailed view of where your DNA is most commonly found.

Admixture proportions (or ethnicity percentages) broken
down by chromosome
So with Eurogenes K13, it shows my chromosome 1 is 28.1% North Atlantic, 15.7% Baltic, 27.7% West Mediterranean, 16.9% West Asian, 10.9% East Mediterranean, and 1.1% Amerindian. This option can often show results in populations that don't show up in a normal Admixture Proportions calculator. However, always keep in mind small percentages may just be from "noise" - like a false positive. I have no Native American ancestry so the 1.1% Amerindian probably doesn't mean anything. You'll also note how I get some North Atlantic results, in varying amounts, on every single one of my chromosomes.

My Eurogenes K13 results
In my normal K13 results, I got 39.03% in North Atlantic, so this is just breaking that average of 39.03% down by chromosome. If you add up all the percentages for one population and divide it by 22 (number of chromosomes) you'll get your overall average for that population. You may note it's a little off from what the admixture calculator originally gave you - for example my average for North Atlantic when each chromosome is added up and divided by 22 is 38.89%, not the original 39.03%. I am not sure why that is, but it's such a small difference I'm not going to worry about it too much. If someone has more information on this discrepancy, please comment below!

At the bottom it says "Number of SNPs eval" - this is just how many of your SNPs were used for the evaluation.

It doesn't show which particular segments each percentage is found on though, but that brings us to the next options.

Part 4 - Chromosome Painting and Reduced Size

How to find it: Same as above, but select "Chromosome Painting" or "Chromosome Painting - Reduced Size" from the bullet list instead.


Chromosome Painting is a visual representation of your admixture proportions not only by chromosome but by segments of each chromosome. The different colors show which segments of each chromosome were most similar with which populations. When there are overlapping colors on the same segment, it means that segment is found in more than one population. The higher the spike, the stronger the match to that population. So segments where there are solid blocks of one color are more solidly found in only that population. Above is just a small portion of one of my chromosomes (7, I believe), as an example of the various populations that will show up for any given segment.

You'll note there are numbers along the bottom of each chromosome - this is marking the amount of base pairs in millions. One centiMorgan is one million base pairs. So if you have a segment painted with a certain color stretching from "10M" to "20M", for example, that's 10 million base pairs, or 10 cMs. Don't get too excited if you see colors for some unexpected populations - small segments could just be noise.

Chromosome painting reduced size
The reduced size option just condenses it so it's easier to view on a single screen. After viewing the full size, you'll quickly see just how cumbersome it is to get an overview, so the reduced size is ideal for that. The full size is better for examining particular portions. They don't label each chromosome but they are listed chromosome 1 to 22, from left to right. They are also rotated so the start of the chromosomes are at the bottom.

You may notice in either the full or reduced size that similar populations (though it's more noticeable in full), or neighboring regions, often spike and dip almost in unison with each other. This is because neighboring regions tend to share a lot of DNA and be genetically similar so when you see this, what you're seeing is that these portions of your DNA may be somewhat indistinguishable among two or more groups. This is important in understanding that not all DNA can be narrowed down to the more specific areas or countries that so many people wish it could, not with any reliability. It also illustrates why you might get results in a region that you have no known ancestry in when it neighbors a region you do have ancestry in.

23andMe's chromosome painting
If you tested with 23andMe, you may be somewhat familiar with chromosome painting already. 23andMe's option for it is a little more straight forward. It doesn't have all the spikes and dips, just solid blocks showing which segments were put into which groups (shown left). However, it does show the two sides of each chromosome whereas Gedmatch doesn't seem to do this. Although in some ways, Gedmatch's painting is more detailed, it is essentially the same concept, just a slightly different approach.

As another example, below is also a graphic from 23andMe - it's not a part of your results from this company, it's just showing, in part, how they determine ethnicity. Their example uses the more detailed type of chromosome painting found at Gedmatch, and it is labelled to show the probability of each ancestry on one side with increasing percentages of likelihood. It can be found in their guide article on ancestry composition. Gedmatch's chromosome painting can be read the same way (ie, the higher the peak, the higher the probability of that segment being from that population).


Disclaimer: Please note I am not a professional in the genetics industry, and it is difficult to find information particularly on some of the more advanced admixture tools on gedmatch. This is how I have come to understand the results and tools through my own experiences and research, but please, if someone more knowledgeable can correct me if I've misunderstood something, or can fill in some gaps, let me know by commenting below.

Sunday, August 20, 2017

Which DNA Test Should I Buy? A Comprehensive DNA Buying Guide

Ancestry.com, 23andMe, FamilyTreeDNA, and now even MyHeritage all offer DNA tests related to genealogy. To determine which DNA test you should buy, you should first determine your motivation for doing so. There's generally one (or more) of four reasons to buy a genealogical DNA test:

1. You're a genealogist (hobbyist or professional) looking for new ways to explore more about your ancestry and possibly break down some brick walls in your tree
2. You're not a genealogist and just interested in your ethnic background
3. You're adopted or looking for an unknown biological parent
4. You are looking for a genetic health report

(A potential 5th reason would be if you want to determine if a known relative is actually a biological relative - for example, if you suspect your father is not your biological father and want to confirm or deny it. Or if you want to determine whether a sibling is a full or half sibling. As long as you both test with the same company, all 4 companies will provide this information).

(Note, it's okay if you want to skip to the final conclusion below, I won't be offended! I've also created a comparison chart, similar to the comparison chart from ISOGG, which is also useful).

The next important thing to understand is that there are three different types of DNA tests: Autosomal DNA, Y-DNA, and mtDNA (mitochondrial DNA, you may have heard of this if you've ever obsessively watched Forensic Files). Here's an explanation of each:

Autosomal DNA is typically the test that most people are looking for, as it's the only one that includes an ethnicity report, and it's also the only one capable of providing a health report (though not all companies include a health report, more on that later). It includes DNA from your autosome chromosomes 1-22, and from the 23rd chromosome, the sex chromosomes. That means it includes DNA from all branches of your tree (back to a certain variable point). It is gender neutral, which means both men and women can take it, and it will not exclude anything based on gender.

There's two main parts to the autosomal DNA test - your ethnicity report, which is largely an estimate and should not be taken very literally, and your match list, a list of other testers (from the same company) who you share DNA with. You will not share DNA with all your distant cousins though, and the more distantly related you are, the less likely you will share DNA. It also won't be able to tell you how you relate to any of your matches - it can only estimate a degree of relationship, not which side or branch they are from. You have to work with your matches and their trees to figure this out yourself. Despite this, the autosomal DNA test is an ideal option for adoptees because it's the only test that will provide matches from all your ancestors, not just one specific line.

Be aware that the ethnicity report often isn't able to narrow the results down as specifically as many people would like. Don't be misled by commercials - no DNA test can narrow it down as specifically as "German" or "Scottish", not with any accuracy at least.

The autosomal DNA test also includes data on the X chromosome, which is one of the sex chromosomes. Males are XY, females are XX. For males, the raw data will include some data on the Y chromosome, but most companies don't provide a Y haplogroup (explained below), and none of them provide matches on the Y chromosome. Most companies allow you to see matches on the X chromosome - more details on which companies provide what will be included further on.

Y-DNA is a test that can only be taken by males, because they have a Y chromosome. If you are female, you can have a male relative like your father or brother or paternal uncle or cousin take the Y-DNA test for you. What this means is that Y-DNA only follows the direct paternal lineage - ie, your father, your father's father, your father's father's father, etc (it does NOT include your entire father's side - ie, it does not include anything from your paternal grandmother's side). No female ancestors contribute to or pass along Y-DNA. Because surnames typically follow the direct paternal line as well, it means that surnames and Y-DNA can often be connected and so there are many Y-DNA projects you can join for your surname. For male adoptees or men looking for a unknown biological father (or paternal grandfather), it means the Y-DNA test may help you identify the surname of the man you're looking for. Be aware, this is often dependent on how many Y-DNA matches you have, and what their surnames are. For adoptees, I recommend taking both the Y-DNA test and the autosomal DNA test, if you can afford it. If your Y-DNA matches suggest a certain surname, go to your autosomal DNA matches and look for people who have that surname in their tree.

In addition to a match list, the Y-DNA test also provides your Y haplogroup. What is a haplogroup? It's a label given to a grouping of genetic markers which every so often mutates. The parent haplogroup goes back to prehistoric times. Every time there is a new mutation it narrows down a new group and there is a new identifier attached to the haplogroup name. What this means is that haplogroups aren't particularly useful for recent genealogy and only really tell you about the migration patterns of your prehistoric ancestors. Some haplogroups are specific to certain races or ethnicities - meaning it may be able to tell you whether your direct paternal lineage was European, African, Asian, Native American, etc. But it probably won't help you identify a recent ancestor by name.

The Y-DNA is more expensive than the autosomal DNA test and there are a few different options to buy, depending on how many markers you want to include. The more markers, the better quality of the results, but also the more expensive. The more markers, the more specific the haplogroup will be, and the more specific and reliable the genetic distant with your matches will be (see the genetic distance chart at FTDNA). Due to the fact that it's more expensive, I would not recommend the Y-DNA test unless you have a question on the specific paternal line.

mtDNA (mitochondrial DNA) is a test that can be taken by both males and females, as we all have mtDNA, but similar to the Y-DNA test, it only provides results from the direct maternal lineage - ie, your mother, your mother's mother, your mother's mother's mother, etc (it does NOT include your entire maternal side - ie, it does not include anything from your maternal grandfather's side). Unfortunately, since surnames don't normally follow the maternal line, mtDNA tends to be less useful for recent genealogy than Y-DNA. If you are an adoptee, you may want to consider taking the mtDNA test in addition to the autosomal DNA test, but keep in mind is it more expensive and may not provide any useful matches or data.

Like the Y-DNA test, the mtDNA test also provides a haplogroup. They work the same as Y-DNA haplogroups, identifying groups of genetic markers that mutate every so often and date back to prehistoric times. For example, my mtDNA haplogroup is T2b. The parent group of markets is identified as 'T', the '2' represents one mutation, and the 'b' represents another. This does not mean I've only had 2 mutations, only that these are the only two identified so far as an existing, known new group. If enough people are found with the same additional mutations as myself, new groups and therefore more numbers and letters will be added to my haplogroup. Like Y-DNA, mtDNA haplogroups really only show you the prehistoric migration routes your ancestors took and while they may be able to identify the race or ethnicity of your direct maternal line, it likely won't help you identify a recent ancestor by name.

In my opinion, mtDNA is only really useful if you happen to get a very close match, which is unlikely since the database of mtDNA testers is relatively low. Even then, a "close" mtDNA match still may not be related within a genealogical time frame.



Now that you understand the different tests, I will go through and detail the pros and cons of each company, which types of test they provide, and give my advice on them depending on what you're looking for from the tests.

A screenshot of my ethnicity report from AncestryDNA

AncestryDNA from Ancestry.com

Ancestry.com used to provide Y-DNA and mtDNA tests, but they no longer do so. Currently, they only provide the autosomal DNA test, which does not include any haplogroups. You will receive an estimated ethnicity report (called Genetic Ancestry) and you can see the 26 regions and categories available here. The info they provide about each category in your results are very detailed, but the accuracy of the ethnicity report is fairly average - some find it more accurate than others.

You'll also receive your list of DNA matches with other testers, in addition to a few other features and tools unique to Ancestry.com like Genetic Communities (shown below - these have now been renamed "Migrations"), DNA Circles, and New Ancestor Discoveries. Genetic Communities (now "Migrations") finds groups of people who share DNA and have the same, known ancestry in a certain area. This is somewhat of an attempt to narrow down your genetic ancestry to more specific areas. DNA Circles finds groups of people who share DNA and have the same ancestor in their tree - so this is not available if you don't have a tree attached to your DNA test. New Ancestor Discoveries are basically DNA Circles for people who are not in your tree (yet), so you will still get these if you don't have a tree.

A screenshot of my mom's Genetic Communities unique to
AncestryDNA
The major benefit to AncestryDNA is that they have the largest database of testers, which means you'll get the most DNA matches to work with. Their database is international, because the test is available in 35 different countries, the full list of which can be found here, however the majority of testers are in the US.

The major downside to AncestryDNA is there is no chromosome browser. A chromosome browser is important to identify matching segments among multiple people you match (triangulation). That doesn't mean you can't have success with AncestryDNA, but in some cases it may make things more difficult. In part, because of this, AncestryDNA does not identify matches on the X chromosome.

AncestryDNA does not provide a health report so it is not an option for people who want an integrated health report, however, there are affordable, third party sites that will accept Ancestry's raw DNA data to provide you with a health report. These will be detailed later. AncestryDNA also doesn't include any mtDNA or Y-DNA haplogroups, although as discussed previously, haplogroups aren't really very useful for recent genealogy anyway so there's nothing really lost here.

Another downside is the fact that Ancestry does not accept raw DNA uploads from other companies. This means unless you test with Ancestry, you can't get results from them and that actually means that in spite of being a negative, it makes the most sense to test with AncestryDNA and then use your raw DNA data from them to upload to other companies that do accept them.

The method of collecting your DNA may be important since some older people have difficulty producing saliva - AncestryDNA's method is a spit tube. You have to fill it to a line. If you're struggling, you can cover it with plastic wrap and set it upright in your fridge and try to add to it later. Also try a little bit of sugar on the tip of your tongue to help stimulate saliva, and/or chew gently on your cheek.

AncestryDNA does not allow you to opt out of DNA matching.

Pricing is normally $99, however, there are often sales ranging from $69 to $89, typically for Mother's Day, Father's Day, Black Friday/Christmas run up, National DNA Day (yes, that's a thing, April 25), and sometimes other times of year like St Patrick's Day. They can also be somewhat spontaneous - this year they had a random "Summer DNA Sale" for half of August.

Conclusion: Apart from the lack of a chromosome browser, AncestryDNA is a good option for adoptees, people looking for an ethnicity report, or genealogists wanting to break down brick walls in their tree, especially if you are already a subscriber there and host your tree there. It just makes sense to have your tree, DNA, and major records resource all in the same place. Non-subscribers are not able to view the full trees of their DNA matches, which may be limiting. However, you can contact your DNA matches and ask them for an invite to their tree, which would allow you access. Trees are important to figuring out how you relate to someone. Particularly for adoptees, using trees to mirror them in your search for biological parents is essential. AncestryDNA is not an option for a integrated health report, but third party options to upload to are available.



A screenshot of my 23andMe ethnicity report

23andMe

There are two autosomal DNA tests available from 23andMe - the "ancestry-only" test which does not include a health report, and the "ancestry+health" test which does includes the health report. Although they are both autosomal DNA tests, they both include an mtDNA haplogroup and, if you are male, a Y-DNA haplogroup. It may not be your most specific haplogroup since they are working with limited mtDNA and Y-DNA data, and they do not include any mt or Y matches with other testers. If you're looking for an mtDNA or Y-DNA test, this is not a shortcut, it is not a true mtDNA or Y-DNA test.

In my experience, most people seem to feel the accuracy of 23andMe's ethnicity report (called Ancestry Composition) is better than other companies. However, it is still an estimate and unlike other companies, they have these "Broadly" categories that can't be narrowed down further (see above or below for examples). The descriptions of each category are also rather short, not very detailed, and the map showing the areas covered is small and not very detailed (see above). They do provide some features that other companies don't, like chromosome painting (shown below) which shows you which portions of your chromosomes they placed into different regions, and a timeline that shows an estimate of how long ago your ancestor of a certain ethnicity lived. Their full list of 31 regions/populations can be found here.

Chromosome painting at 23andMe shows the portions of
my chromosomes they've associated with which groups
The major downside to 23andMe is that they no longer support any family trees. As discussed, trees are important to figuring out how you relate to your DNA matches, and essential for adoptees. Of course, you can host a tree on another website and post a link to it in your 23andMe profile, but most people don't do this, and even if they do have a tree hosted elsewhere, it is very cumbersome to try to work on two different platforms. Similarly, most people report that their matches at 23andMe are more likely to not respond to their attempts to communicate. This is probably because many people at 23andMe tested there for the health report, and may have no interest in the genealogical side of things.

23andMe does provide a chromosome browser but their interface isn't always intuitive and the chromosome browser can be found in two different places, with the harder one to find including more data.

A portion of the list of rare diseases carrier status,
a part of your health report at 23andMe
The health report is the feature that sets 23andMe apart from the other companies. However, although they are gradually adding more and more health reports, they are lacking many of the health issues most people want to know about, like tendency for cancer, heart failure, etc. These may get added as time goes on, but at the moment, many of the health reports are your carrier status for rare diseases that you may never have heard of and are probably negative for (see example right). There's also 4 genetic health risks that might be more common, but there's only four of them (Late-Onset Alzheimer's Disease, Parkinson's Disease, Alpha-1 Antitrypsin Deficiency, Hereditary Thrombophilia). There are a few other "wellness reports" and "traits" reported, but they are mostly things you probably already know about yourself, like whether you're likely or unlikely to be lactose intolerant, whether you're a deep sleeper or not, what color your eyes are, etc. You can actually get a more comprehensive health report from third party companies where you can upload your raw DNA data. As 23andMe add more and more reports though, this may change.

Like AncestryDNA, 23andMe does not accept raw DNA uploads from other companies so if you want results from them, you have to buy their test.

23andMe is able to ship to over 50 countries, listed here, though health reports will not be available for most of them (those are listed here).

23andMe's method of collecting your DNA sample is a spit tube. See details above for tips on collecting from a dry mouth.

You can opt out of DNA matching with 23andMe if you wish to.

Pricing is normally $99 for the ancestry-only test, and $199 for ancestry+health. 23andMe do not often have sales - the only time I've seen their tests on sale were actually through Amazon, and even that is not often.

Conclusion: 23andMe would be good for people who just want an ethnicity report, or health report, but because of the lack of trees and responses from matches, it would not be ideal for adoptees or genealogists wanting to break down brick walls in their tree. If you have the money and inclination, I would still encourage testing with them though, since they don't accept uploads from other companies. If you want a health report but can't afford 23andMe's health test, there are third party sites that will accept data from 23andMe (details below).



FamilyTreeDNA

A screenshot of my mother's ethnicity report at
FamilyTreeDNA
FamilyTreeDNA, commonly abbreviated to FTDNA, offers autosomal DNA (called "Family Finder"), Y-DNA, and mtDNA tests. They are really the only company to offer Y-DNA and mtDNA. Other companies (named lower down) may offer them, but typically don't provide a match list.

Just like the other companies, FamilyTreeDNA offers an ethnicity report (called myOrigins), and a DNA match list. It does not include a health report. It does support family trees, and offers a chromosome browser and other tools for working with your matches (like the matrix tool, for triangulation, see below).

They also accept raw DNA data from AncestryDNA, 23andMe, and MyHeritage, for only $19 to unlock your full results.

FamilyTreeDNA's Matrix tools for seeing which of your
matches also match other select matches
The major downside to FamilyTreeDNA is that their ethnicity report probably ranks 3rd out of the 4 companies covered here. Granted, they are the only ones attempting to identify Sephardic Jewish ancestry, all other companies only include Ashkenazi. They also split Native American into North and South America, whereas 23andMe and AncestryDNA lump them together. But if you're not one of these groups, it's probably not important. A full list of their 24 regions included can be found here.

Since they offer full mtDNA and Y-DNA tests, their autosomal DNA test does not include haplogroups like 23andMe does, however, as discussed, haplogroups aren't particularly useful for recent genealogy anyway. They have partnered with Vitagene to offer a health report for $49 but be aware that Vitagene also accepts data from 23andMe and AncestryDNA for a health report of the same cost, they just aren't partnered. Additionally, the FTDNA health report from Vitagene is only available for those who bought a test with FTDNA, not for those who uploaded their raw DNA data from another company. And as discussed, there are other third party sites that provide a health report and accept uploads from FamilyTreeDNA too.

FamilyTreeDNA will ship to "most international locations" - the only countries they list as unable to ship to, due to customs restrictions, are Sudan and Iran. More details here.

The method of collecting your DNA sample is a cheek swab, some people with dry mouth may find this easier to use.

You can opt out of DNA matching with FamilyTreeDNA if you'd like to.

Pricing is normally $89 for the autosomal Family Finder test but can sometimes be found on sale for $59-$79.

Pricing for Y-DNA normally ranges from $169 to $359, depending on marker amounts (see above info on Y-DNA for details), but you can sometimes find them on sale for less.

Pricing on mtDNA is normally $79 for "mtDNA Plus" or $199 for Full Sequence, but you can sometimes find them on sale for less. The mtDNA Plus test might be tempting for only $79, but this will only be relevant to ancient/prehistory. If you want any chance of having results/matches from a genealogical time frame, you have to buy Full Sequence.

Conclusion: It's the go-to place for Y-DNA or mtDNA. While FamilyTreeDNA offers all the tools necessary for working with your autosomal matches, which is necessary for genealogists and adoptees, the ethnicity report isn't the best, and if you don't mind the $19 fee, it makes more sense to test with another company and upload to FamilyTreeDNA. If you're not interested in dealing with multiple companies, and you're not that bothered about the ethnicity report, then FamilyTreeDNA is the best option for a slightly lower cost. They do offer a health report from VitaGene for an extra cost, but you can get a VitaGene health report if you test with other companies too, so it's not exclusive to them.



A screenshot of my ethnicity report at MyHeritageDNA

MyHeritageDNA

MyHeritage are newcomers to autosomal DNA testing (they do not provide mtDNA or Y-DNA) and therefore their database of testers is very small - you will have few matches compared to other companies, although it is growing fast. Additionally, I've had a poor experience with their matching system, where most of my matches can not be found as matches to either my mother or my paternal grandfather (whose tests are both on MyHeritage too). However, they can't all be matches to my paternal grandmother, especially considering she was Italian and none of these matches are Italian. There are a few articles about MyHeritage's unreliable matching found here and here. It seems they have an abnormally high amount of false positive (or false negative) matches. Hopefully, this will be fixed in the future, and as their database grows, it will become more useful to genealogists and adoptees. They also do not offer a chromosome browser, or many tools for working with your matches, like a shared matches/in common with tool available from all 3 of the other big companies.

The other major downside is their ethnicity report is also very inaccurate for most people at the moment - I expect that will improve with time (all companies periodically update their ethnicity reports), and their database will grow with time as well. The maps are fairly detailed though, and one bonus to their ethnicity report is that they break Native American down into three regions, more than any of the other 3 big DNA companies, so if you are Native American, this may be a good option. They also have five Jewish populations. MyHeritage don't like to name all their regions/populations available until you've taken the test, but there are 42 of them, and you can see a map of their coverage here and I've also created a spreadsheet with them listed here.

MyHeritage does not offer mtDNA or Y-DNA tests, only autosomal DNA, and does not include any haplogroups like 23andMe's autosomal DNA test does, but again, haplogroups aren't very useful for recent genealogy. MyHeritage also does not offer a health report, and at this time I do not think third party health sites will accept raw data from MyHeritage (this may change with time).

Like Ancestry.com, MyHeritage is also a genealogy website that offers a database of records and resources for genealogy research, for a fee. They also offer family trees and you can attach your tree to your DNA results, however their trees are limited to 200 people within them if you don't subscribe, which could be promblematic if you or your matches don't have complete trees to work with. If you subscribe to MyHeritage already, it would make sense for you to have your DNA test there. However, because MyHeritage currently accept uploads from other companies (23andMe, AncestryDNA, and FamilyTreeDNA) for FREE, it doesn't make much sense to buy their test when you can get the same results for free by testing with another company and uploading your raw DNA to MyHeritage. I imagine they are currently only offering the uploads for free because their database of testers is so small and they are trying to build it up. Once they have a better established database, they may start charging for uploads. So I'd recommend getting your raw DNA data uploaded there as quickly as possible, while it's still free.

MyHeritage don't seem to detail what countries they are able to ship to, but they do offer the test to be purchased in different currencies, including USD, EUR, GBP, and ILS.

The method of collecting your DNA sample uses a cheek swab.

They do not allow you to opt out of DNA matching.

Pricing is normally $99, though they currently have a long running sale for $69, probably to entice people and more quickly build their database.

Conclusion: Due to the poor ethnicity report, small tester database, unreliability with matching, lack of tools for your match list, the limitations of not having a subscription, no health report (and not supported by third parties who provide health reports), and the fact that they accept free uploads from other companies, I would not recommend buying a test from MyHeritageDNA, regardless of your reasons for testing. It makes more sense to buy with another company and upload to MyHeritage. If the current sale price appeals more to you, keep an eye out for sales from AncestryDNA.

Other Testing Companies

LivingDNA Europe break down
The above four companies are certainly not the only ones to offer DNA tests, but they are the main (only?) ones which are geared towards genealogy and include both ethnicity and DNA matching with other testers, all for the most affordable cost. The following companies don't offer DNA matching and yet are often much more expensive.

LivingDNA offers the greatest break down of your ethnicity report - 93 populations in total, including 20 regions within Europe and 21 regions just within Great Britain/Ireland, but this also makes it highly speculative and possibly not very accurate. Also note they have no Jewish categories. Biggest complaint is they overestimate British results. They do not offer matching (but are planning to add it soon) or a health report, but do include autosomal, mtDNA and Y-DNA. They do not accept uploads from other companies but are looking into adding it for autosomal only. Normally $159.

My DNATribes Ethnicity Report
DNATribes offers a greater break down for Native American regions (seven), but regions for Europe are very broad (only 4), and they do not offer matching or health report. Focus is more on ancient "deep" ancestry, not recent. They do accept uploads from other companies for $50 (option for that is found here). They do not offer mtDNA or Y-DNA. Normally $119.

AncestryByDNA (not to be confused with AncestryDNA) uses an outdated method of determining your ethnicity report and is therefore very unreliable. Unsurprisingly, they are shutting down Sep 30, 2017. They do not offer matching, health reports, or allow uploads from other companies. Offers autosomal, mtDNA, and Y-DNA. Pricing no longer available due to discontinuation.

National Geographic's Geno 2.0 (The Genographic Project) focuses on ancient DNA, not recent genealogy, and does not offer matching, health report, or allow uploads from other companies. Includes autosomal, mtDNA, and if male, Y-DNA. Normally $199.95.

Genos is a company that provides your full genome and is therefore extremely expensive at $499. It does not provide any ethnicity or matching. They do provided a health report of sorts but their FAQ is careful to say, "We provide information like population frequency and related health traits. We do not provide interpretation, and do not specialize in addressing conditions." Unless you need your full genome for a specific medical reason your doctor has requested, this is probably not worth the money.

African Ancestry is obviously a test for people of African descent. They provide Y-DNA, and/or mtDNA, not autosomal. They offer highly specific results of where in Africa your ancestry is from, but keep in mind it's only from one direct line, not your full ancestry. They do accept mtDNA or Y-DNA uploads from other companies for $210. They do not offer matching or health reports. Normally $299 for either Y-DNA or mtDNA (so $598 for both). That's pretty expensive, and I couldn't say whether the results are worth it as I'm not African.

Vitagene is primarily a DNA test which provides a health report, and also includes an ethnicity report. They do not provide DNA matching with other testers, or any mtDNA or Y-DNA. They will provide a health report only (no ethnicity) for uploads from AncestryDNA or 23andMe for $49, or if you tested with FamilyTreeDNA there should be an option on your dashboard to order a health report from Vitagene for the same cost (if you uploaded to FTDNA from another company, this is not an option within FTDNA). They will also sell you supplements/vitamins and a diet and fitness plan based on your DNA health report. Normally $99.


Third Party Options

One of the many admixture calculators available at Gedmatch
One of the great things about DNA is that there are independent sites that provide further analysis on your raw DNA data, for small fees or even free. They do not sell DNA tests themselves, they only take the raw data from whatever company you tested with and analyze it.

Gedmatch is the go-to third party site for DNA analysis. It accepts uploads for free from 23andMe, AncestryDNA, FamilyTreeDNA, MyHeritageDNA, and WeGene (below). It offers multiple different admixture (ethnicity) calculators, a list of your closest matches from people who have uploaded from all different companies regardless of which one you tested with, and a more detailed comparison with any one particular person/test. It does not include a health report and the main criticism is that it's not very user-friendly. For a guide on the admixture calculators, see my blog article on it.

WeGene is a site that focuses on Asian ancestry, it's not really ideal for others. They accept free uploads from 23andMe and AncestryDNA, but currently not FamilyTreeDNA or MyHeritage. Includes ethnicity report, mtDNA and Y-DNA haplogroups, and health report. Unclear on whether they provide matching?

DNA.land's ethnicity report
DNA.land is similar to Gedmatch and is also free, they accept uploads from 23andMe, AncestryDNA, and FamilyTreeDNA, but not from MyHeritage (at this time). They only offer one ethnicity report (as opposed to Gedmatch's many), and their match lists are small, as they have a smaller database of uploaded tests. No health report but they do have a "trait prediction report" which may be a precursor to a health report. They also give you the option to participate in medical studies. It's a project run by the Columbia University and the New York Genome Center.

Promethease will provide a health report from data from 23andMe, AncestryDNA, and FamilyTreeDNA for only $5, and from Genos for $10. It is fairly comprehensive, but only really tells you what genes you have that are associated with what conditions. You should really consult a doctor for a medical opinion on it.

GENOtation is a free tool from Stanford University that analyzes your 23andMe or Lumigenix data for ancestry and health reports.

LiveWello will provide a health report for $19.95 from your 23andMe, AncestryDNA, or FamilyTreeDNA raw data.


Final Conclusion: 

If you're a genealogist or adoptee, to get the best value, I recommend testing with AncestryDNA or 23andme, and then uploading your raw DNA data to MyHeritageDNA for free, and to FamilyTreeDNA for only $19 to unlock your full results. If you want health reports, you can upload to Promethease.org for only $5. That way, you wind up spending a max of about $125 for results from 3 companies and a health report (and any free third parties you choose to upload to). You'll get the most out of your money this way. If you have the money and inclination, buy from both AncestryDNA and 23andMe, then upload everywhere else, as then you'll have access to and matches from every company. If you don't have the money or inclination, I would prioritize buying AncestryDNA over 23andMe, since 23andMe doesn't offer family trees, and AncestryDNA have the biggest database of testers. If you're really on a tight budget, and can't afford $120-125, then I would say test with FamilyTreeDNA, since it's less expensive and has all the tools you need.

If you're thinking "wow, I'm not that into this, I just want my ethnicity and/or health report and I'm good with it from just one company, I'm not interested in the rest," then I would recommend 23andMe or AncestryDNA. However, I would also remind you that the ethnicity report is only an estimate, the true value of the test is with the DNA matches. If you're not inclined to upload to Promethease.org for a $5 health report which is arguably more comprehensive than 23andMe's $199 test right now, then 23andMe is your only option for a health report. If you're not even interested in DNA matching then perhaps you could even consider Vitagenes for an ethnicity and health report for $99.

If you're just looking for ethnicity and no health report, 23andMe have the most accurate ethnicity report in my experience, followed by AncestryDNA, then FamilyTreeDNA, and finally MyHeritage coming in last (this is based on my experience with all 4 companies, managing 3 kits, and on years of communicating with other testers who typically agree with this assessment, and additionally the opinion of the International Society of Genetic Genealogy). So although they are less expensive, MyHeritage has terrible ethnicity reports at the moment, and although FamilyTreeDNA has improved their ethnicity report recently, it is still sub-par if you ask me. You get what you pay for. That said, different companies often have more break down in one region or another. 23andMe has a greater break down of East Asia than AncestryDNA does, but AncestryDNA has a greater break down of Africa than 23andMe. For a complete comparison, check out the spreadsheet I made. Given that Ancestry's DNA test is more commonly on sale than 23andMe, if you're not desperate for 23andMe's health report and there's no rush, I'd recommend waiting and snagging AncestryDNA when it's on sale. You'll be waiting much longer if you wait for 23andMe to go on sale. However, if not being able to opt out of DNA matching is a deal breaker, then go with 23andMe where you can opt out.

If the spit tube is a deal breaker, then FamilyTreeDNA is your best option.

Of course you are free to make your own decision based on the information provided! This is just my opinion, but it is based on years of experience with all 4 companies and some of the third parties. I also created a quick reference chart that compares the companies as well.

Tuesday, July 25, 2017

How To Do Pre-1850 Research?

The will of Jonathan Gilbert, naming all his children (Charles
and Israel's names highlight)
It's one of the first questions people ask once they've been researching for a little while. Why do most branches seem to brick wall around 1850? How do I get back further?

So often, our main resources in genealogy are census records, and in the US, pre-1850 census records only list the head of household by name. This makes it difficult to identify families and find parents names of people who were adults and living independently from their parents by 1850. Additionally, most states in the US were not issuing birth and death records this early on, meaning we have to rely mostly on church records and obituaries. Many church records either haven't been digitized, making them hard to track down, especially if you don't know where to look because you don't know where specifically one was born or what church they attended, or they may have been lost or destroyed over time. Unlike civil records, churches have no obligation to archive their records, or even keep them in the first place. As for obituaries, often times they are only a brief death notice with nothing more than info on the individual's death and burial, and that's assuming they available online or you can find access to the right newspaper offline. Occasionally, you might see a burial record that name's the decease's father, but not always. So to say that records become more scarce before 1850 is putting it lightly.

It's frustrating, but the good news is, there are other sources. Records like probates, deeds, and tax lists are often some of the oldest records available, and recently, more and more of them are getting digitized. Now, I can't promise these records will always break down your brick walls but they are worth exploring, and here's my most recent example.

In search of the parents of my 4th great grandfather Charles Gilbert (1784-1861, Montgomery County, PA), I finally found them through probate and deed records alone. Firstly, I knew that Charles had a brother Israel Gilbert, because there is a local history book detailing one of Charles' sons, Seth, and stating he had an uncle Israel Gilbert (and yes, it also confirmed Seth as the son of Charles Gilbert and my 4th great grandmother Jane Sutch). Next, I was looking for deeds bought or sold by Charles, and one of them from 1811 mentioned Israel, so I knew I was looking at the right Charles Gilbert. It also mentioned several other Gilbert men, and indicated the estate of the deceased Jonathan Gilbert. My spidey-sense immediately tingled, as it sounded a lot like Jonathan was the father of all these men and his sons were taking care of his property after his death. But how do I confirm it?

Jonathan Gilbert's will confirming his wife's unique name,
shared with her granddaughter
I went looking for wills of a Jonathan or Jon Gilbert in the right area around 1811 and immediately found one dated 1808 and proved in 1809. It lists all his sons names, matching those in the deed, and his wife's name. The clincher? His wife's name was Dedemiah, a rather unique name shared by none other than Israel's daughter. Bingo! Mystery solved, with nothing more than a deed and a will.

Israel also had a son named Jonathan, probably named after his father, but given the popularity of this name, that alone wouldn't have been enough to convince me.

It doesn't always go this way, of course. Not everyone owned land, and not everyone had a will, and even when they did have a will, they did not always take the time to consider us future genealogists and list their children by name. Sometimes, probate records regarding the execution of the will, can name children though, so be sure to read those too, no matter how boring they seem.

Montgomery County, PA Deeds 1784-1866 can be found online (but not indexed yet) at FamilySearch.org
Montgomery County, PA Probates can be found at both Ancestry.com (indexed), and FamilySearch.org (not indexed)

Monday, July 24, 2017

"Secret" Hidden Collections on FamilySearch

So, FamilySearch are discontinuing their microfilm service soon. Everything will be digitized by the end of 2020, which is a bummer we have to wait so long for some films, but here's the good news: there are already a number of collections digitized but not yet indexed. That means they won't show up in the search engine when you're searching by someone's name. You have to find the collection in their list of collections and then manually browse the images. It's tedious, but if you're anxious to find something and don't want to wait for it to be indexed, it can be worth it. Additionally, there's some collections already digitized but not even found in their online collections list yet! The way to find them is to search for microfilm from the catalog and if the film has a camera icon on the right, you can click on it and be taken to the digital images. Of course, first check to make sure the collection hasn't been indexed, so you're not wasting time manually searching the images when you don't need to.

Above is an example of one such collection. The Montgomery County, PA Deed, 1784-1866 is not found in the online collection list (at least, not as I post this - it could get added any time), you can go to the list and narrow it down to Pennsylvania and see there is no mention of any records of deeds. Yet if you search for it in the microfilm catalog, you'll see the camera icons (circled in red in the screenshot above) you can click to view the digitized images. Of course some collections may have restrictions on them, meaning you can only view them from a computer in a Family History Center or affiliated library, but it's better than nothing/waiting for microfilm to come in.

What this means is that there may already be collections you need that have been digitized, you just need to do a little more digging to find them. So there may be more available now than you realize. Of course, if you'd rather wait till everything is indexed, you're welcome to do so. But the end of 2020 date is just for scanning everything, that doesn't even include indexing. You could be waiting much longer than 2020 if you wait for everything to be indexed. So I would advise regularly checking the catalog to see if there's any collections that have been scanned but not yet added to the collections list or indexed.

Thursday, July 13, 2017

The New Change in AncestryDNA's Test Activation Process

You may have heard the news that as of July 18, 2017 Ancestry.com will be requiring that only one DNA test can be activated per account. Before you panic, let's get the facts straight.

1. This won't affect existing multiple kits on your account. Ancestry have made it clear that "If you are a customer who currently manages multiple DNA kits in your account you’ll continue to have access to those DNA results and there’s no action for you to take."

2. You will still be able to administer someone else's test on your account. The changes only effect the activation process. Once activated, you can still go into your test settings and transfer management of your test to another account. They are now calling it "making someone a manager" rather than "transferring administration", but the manager has pretty much all the same access and rights the administrator did, the only thing a manager can't do is remove the owner from access (see the chart above). You can read instructions on how to transfer management from Ancestry's help article found here (scroll down to "making someone a manager"). The changes to the activation process just mean that managing someone else's kit now requires several extra steps of first creating a new Ancestry account and activating it on the new account before management can be transferred to your account.

3. You do not need to subscribe to Ancestry.com to take their DNA test. This means Ancestry are not trying to artificially inflate their subscription numbers. You can read more about the free guest registration here, and sign up for it (not the free trial), with no credit card necessary, here.

4. Ancestry.com have always advertised the number of DNA tests in their database, not the number of accounts that have DNA tests. Therefore, Ancestry are not trying to artificially inflate these numbers either, as these new changes will not affect these numbers. Their company stats are available here.

5. What is their motivation for doing this then? If you read their response to this support topic, from back when they were trialing this, it is a little clearer: "It has been Ancestry policy that only those with legal authority (such as a legal guardian) can activate a test for another user. We are making changes to reflect that policy." My personal interpretation is that this is a legal issue, and their lawyers want the company to assure (as best they can from their side, within reason) that the person activating the test is the person supply the sample. It allows them more deniability if someone accuses someone else of activating their kit without their permission.

6. Other companies have similar policies. Not only does FamilyTreeDNA require a different account for each person, they do not even allow you to transfer management to another account after activation like Ancestry do. The only saving grace to this is that FTDNA allow you to register more than one account with the same email address, because their login details use kit numbers instead of email address. But it still forces you to constantly login and out of different tests if you manage more than one. Ancestry's changes may feel like a step backwards in their activation process, but when you consider the alternatives, Ancestry still has an advantage over some.

Understanding all this, of course the new changes are still an annoying inconvenience when someone wants you to administer their test on your account. But despite all the objections made by customers during the trial of these changes, they are clearly going ahead with it anyway. Personally, I would respect this change more if they stopped trying to make it sound like this is of some kind of benefit to customers, as though this system is easier for us, when we all know it's not.

If you recently took advantage of the AncestryDNA sale on Amazon Prime Day and this is not your first kit, I recommend you hurry up and activate as soon as it arrives so you don't have to deal with this come July 18th. Fortunately, Prime promises 2 day shipping, so you should have already received it, if not today than tomorrow. You can activate it before you supply the sample and send it into the lab, and there is no deadline on when you can send it in after activating, so don't delay on activating it!

Monday, June 26, 2017

Discontinuation of FamilySearch's Microfilm

So for those who haven't heard, FamilySearch is going to be discontinuing distributing of their microfilm come September 1, 2017. You can read their announcement of it here. This is because they are in the process of digitizing all their microfilm for online access and estimate they will be complete by the end of 2020. Of course, I hugely appreciate the massive undertaking of scanning so many records from microfilm and making them available for free, the contribution their organization has made to the genealogy community is outstanding, but it is still disappointing to know there is going to be an almost 3 year downtime in which many records won't be accessible at all. That's assuming their projection is correct and they complete everything by the end of 2020. Hopefully, it does not take longer than expected.

According to FamilySearch, they have 2.4 million microfilms at the Family History Library in Salt Lake City, and they have so far digitized 1.5 million of those. That means there is still almost a million more films (37.5%) which need to be scanned. Granted, they have prioritized those which are most frequently ordered and already digitized them, but there are probably thousands (millions?) of people out there who need access to those roughly 900,000 films still not scanned, who will no longer have it for the next 2-3 years. I am one of them, in the last 2 years I have order dozens of microfilm which not only was not digitized at the time, but remains still un-scanned today.

I am just surprised that they aren't waiting until everything, or at least close to everything is done before discontinuing it. They've only just passed the half way point of completion. I have seen arguments as to why they are discontinuing the microfilm service, and they all make sense for discontinuing it eventually, just not right now, before their scanning project is at least a little closer to being complete. It is certainly disappointing, but it's not like it's the first time I've been forced to wait years for access to certain records. Fingers crossed their timeline projection is accurate.

Tuesday, June 6, 2017

Newspaper Mentions of Incoming Ships

My ancestors were the few who stayed on board the Australia
in spite of the disabled engine
Here's a tip many people may not know about. Newspapers typically reported the arrivals of ships, so if you're looking for more information on your ancestor's immigration, check newspapers.

For example, I had the passenger list for my ancestors, Giovantomaso Scioli and Lorenza Palladino, arrival in New York City on March 10, 1880, but frustratingly, the passenger list didn't mention the departure port or date. Wanting to know when and where their ship left from to get the full picture of their journey, I found NYC newspaper articles on March 10th and 11th, 1880, which told me not told me the ships departure details, but also that the ship made the journey on a disabled engine and hit a storm just before arrival!

That's probably a unique situation, but at the very least you should find a listing of ship arrivals with the details of its departure (example below). Sometimes, passenger names are even listed so if you're struggling to find any passenger list to begin with, you might want to try newspapers too (example below.