When I was young, there was a local woman who was extremely unhappy with her husband’s late night carousing. He would come home “a bit tipsy” as well, and tried to sneak in unnoticed by leaving the lights off. She was tired of it, so she got even, er, um, I mean, created a learning moment.
She rearranged all of the furniture and you had to walk through the living room to get to the bedroom. About 3AM, she heard a huge crash.
Well, that’s what 23andMe did a few weeks ago. I know they think they improved their website, but they didn’t. And what they’ve done is cause a huge amount of work for those of us who assist others who have tested at 23andMe. People can’t find the genealogy tools. They both renamed them and relocated them and we didn’t even get any new features in the deal. Where features were located wasn’t intuitive before, and they still aren’t, but now they are in different unintuitive places than they were before. In other words, stumble, thump, crash – the lights are out and someone’s home.
So, as a matter of self-defense, I’m writing this blog about the basics of how to navigate the 23andMe site and how to utilize their genealogy tools. It’s easy to miss opportunities if you don’t understand the nuances of their system, and they do have some great tools, by whatever name they call them.
We’re only interested in the genetic genealogy aspect, so we’re not discussing how to navigate the rest of their site. Yes, there is more to the site than genealogy:)
The sign-on screen still looks the same. After that, it’s all different.
First, remember that if you manage multiple kits, 23andMe decides which one is your default and you may not come up as “yourself.” You can solve that by flying over your name in the upper right hand corner and then clicking on “switch profiles.” I surely wish they would let you select and save your selection permanently. You have to switch profiles every time you sign on.
Making Yourself Visible
The second thing you need to make sure of is that you ARE sharing, that people can see you.
Fly over the gear on the left hand side of the page at the top. You’ll see the Settings option, click on that, then look through the options there, but specifically the “Privacy/Consent” tab.
I’ve had people who could not figure out why they never received any invitations and their friends couldn’t find them, and it’s because their selections precluded sharing or did not allow people to search for them.
Here’s part of the Setting page, but you’ll want to review all of the information under your various settings tabs.
The main page has several panel buttons across the top. Not all are shown below. The two we are going to be interested in are the “DNA Relatives” and the “Ancestry Composition.”
If you want a quick overview of all of your genealogy information at 23andMe, you can click on the “My Ancestry Overview” button, but that’s not where the meat is – it’s more like an appetizer.
Here’s an example of the overview page. Hint, the 4% Scandinavian showing is NOT your results, just the “cover page.”
Ancestry Composition – Ethnic Percentages
Click on Ancestry Composition.
You’ll see your own results in a circle chart.
You can toggle the “standard” estimate to speculative or conservative in the drop down box at the upper right. You can also change this circle to “chromosome view” which is really interesting. The bar graph shows me that the two locations with identifiable Native American ancestry are found on my chromosomes 1 and 2.
If you’ve been following my blog, you’ll know that I took this information and ran with it. Here’s the link to “The Autosomal Me” series.
If you’re interested in taking this further and trying to identify your lines that match up with different ethnic admixtures, take a look at the series, especially Part 4, “The Autosomal Me, Testing Company Results.” You’ll need to utilize some special download techniques and tools found outside of 23andMe, such as www.dnagedcom.com and you’ll also be utilizing www.gedmatch.com as well. What 23andMe provides you in this category is just the beginning.
There are four ways to find and select people at 23andMe to invite to share their DNA with you. 23andMe is different than Family Tree DNA. At Family Tree DNA, you are testing FOR genealogy, nothing else, so when you sign your authorization and consent for comparison, it speaks only to genealogy data, not medical data. So everyone at Family Tree DNA is sharing unless they specifically elect not to. 23andMe also provides health information and many who tested for health traits are not interested in genealogy, so in order to share any information at 23andMe, you must invite them to share and they must agree.
Of course, 23andMe shows you a thumbnail of who you match, but there are several ways to refine and be selective about this process.
Searching for Specific People
If you know who you want to invite to match, enter their e-mail address, their name, their surname or their nickname at 23andMe in the main site search box. If they have allowed searching and have tested at 23andMe, a link to request sharing will be shown, similar to the screen below.
Finding People with Common Surnames
First of all, to find people whose surnames include those in your family tree as well, in the general site search box, type in the surname you’re hunting for. Let’s hope it’s not Smith.
The results of that search in all categories on the 23andMe site are shown, and you can click on any of the categories for more information. In my case, I see that there are more than 100 people whose information includes Estes. I can click on any of the links that say “invite so-and-so” to invite them to share with me. I always customize the message. Many people don’t reply to “generic” messages that don’t say why someone is asking to compare.
Finding Genetic Matches
To see whose DNA you match, click on Family and Friends, then on DNA Relatives.
The first person on your list, is you. This is a good sanity check to be sure you’re comparing the right profile and not your cousins when you thought it was your own.
Next you’ll see your closest matches. These folks I’m most closely related to are my “Blessed Cousin Circle” who graciously provided their DNA so I could utilize it to figure how who matched whom. Like a huge family puzzle, with no picture on the box cover.
On down the list a ways are folks who I match but with whom I’m not yet sharing. Geeze, guess I’d better try to fix that!
Looking down the list, I see that few have included much information, which is sometimes an indication that they’re either not interested or don’t know a lot about their genealogy. But look, there’s one with quite a bit of information near the bottom of the list. Great. But wait….oh no….I’ve already sent an invitation and never heard back. That’s OK though, because I can send another message by clicking on “View” and then “Compose.” Again, I always include a personal message. Some people include links to their family trees in these messages as well.
Searching for Surnames within Genetic Matches
Let’s say I want to be more specific and I want to target people on my match list that have a specific surname. I want to see who among my genetic matches also shares the Bolton surname in a genealogical line.
In the “search matches” box at the top of the list of names, I entered Bolton, my father’s mother’s maiden name.
The list returned is small. The first person, Stacy, is my cousin and I know her genealogy quite well, so that surname match is expected. But I don’t’ know the second person, Janet, and I need to investigate this further.
Remember, this is a surname search of those who match genetically. Even though Janet and I share a common surname and some DNA, our match may NOT be through the Bolton line. In fact, it could be on my mother’s side instead.
So as a quick check, since I manage my Cousin Stacy’s DNA account, and she is related through my father, I’m going to see if she matches Janet too. If so, then that means the match is from my father’s line, and could well be the Bolton family. This technique is called triangulation.
Stacy does not match Janet, so that means that more genealogy work is in order to see if the Henry Bolton (1759-1846) ancestral line is our common line. It could simply be that Stacy and Janet are too far removed from a common ancestor and Bolton is the correct genealogy line, but they don’t share a large enough segment of DNA to show up on each other’s lists.
The other potential issue is that either Stacy or Janet is over their 1000 match limit imposed by 23andMe, so they might actually match each other, but have fallen off the match list. This is becoming a larger and larger issue. I’m over that limit as are most people who have Jewish heritage and many who carry colonial American genealogy. So far, 23andMe has declined to address this growing issue. It makes drawing any conclusions from this type of triangulation impossible through a vendor-imposed handicap.
On the DNA Relatives Page, click on the surname link in the upper right hand corner. What this shows you are the number of the various surnames on your list as compared to how rare they are in the general population. This is your signal that something is up, so to speak, and it might be your lucky day.
My most “enriched” surname is Vannoy. This means that it appears 7 times in my match list, including as one of my own historical surnames, and it’s quite rare otherwise, which is why the 98 on the enrichment bar and the fact that is it is my more prevalent rare surname.
Looking down the list, this implies that maybe Henley is one of my family names that I’m not aware of. Maybe I should contact the Henley matches and see if there is anything in common between them, genealogically, and if I have any dead ends where their ancestors are located. Maybe I should see if their DNA and mine overlaps in any common location. The easiest way to do that would be to use the downloaded spreadsheet via www.dnagedcom.com because then we can see everyone who matches those segments of DNA, including those who have tested at Family Tree DNA because I’ve downloaded that file into my spreadsheet as well.
You can click on the surname and your matches will be displayed, including ones you’re sharing with and ones you aren’t. In this case, I clicked on McNeil and discovered my matches are all my cousins, so nothing new to be discovered here.
I did notice that not all my surnames are present. For example, Estes is missing. I’m not sure how 23andMe selects the names to include, and there is no “page help,” so I’m just glad for the ones that are present on the list.
Chromosome Comparison Tool
Ok, now that you’ve found matches and they are sharing with you, what’s next? The next tool is the chromosome comparison tool, found under Family and Friends, then Family Traits.
This tool allows you to compare any two people on your list of matches, including the X chromosome which is inherited differently and can be a very important genealogy hint.
Here’s a comparison of me and my cousin, Cheryl. Her father and my grandfather were brothers, so we share quite a bit of DNA. And because I know where it comes from, genealogically, anyone who matches both of us on these segments shares our ancestry too. No, you can’t do that “compare all” function at 23andMe, but your downloaded spreadsheet will handle that quite nicely.
Update: Venice points out that Family Traits does one thing that Family Inheritance: Advanced doesn’t do – it identifies fully identical segments vs. half identical segments. Most segments between genetic relatives are half identical, but (full) siblings will have a fair amount that’s fully identical. Family Traits also shows the locations of the centromeres and other low-data zones.
Family Inheritance, Advanced
Under the Ancestry Tools tab, there is one more tool I want to discuss briefly. Unfortunately, it’s not as useful as it could be because of the way it has been implemented.
This tool allows you to compare yourself with up to three other kits whom you match, except for public matches. Unfortunately, I have several public matches and I’d love to be able to do this comparison. For example, I’d like to compare myself to my cousin Stacy and Janet, but because Janet is a public match, she’s not available on my list:(
Update: Kitty has found a way to allow for Public match comparisons. “To offer to share with a public person you have to click on their name at the left to go to their profile and then click the words Invite (name) to share genomes located at the top right.” Thank you Kitty!
Red Herring Matches
Let’s use Family Inheritance Advanced as an example of two people who match me on the same segment, but are from opposite sides of my family. I know when we talk about this, people secretly say to themselves, “yea, but how often does that really happen, I mean, what are the chances.?” Well, here’s the answer. Better chances that winning the lottery, for sure, and I mean the scratch off tickets where you win a dollar!
My cousins Stacy and Cheryl are from Dad’s and Mom’s side of the family, respectively. We know they don’t share common ancestry, but look, they both match me on four of the same segments.
How is this possible, you ask. Remember, I have two halves of each chromosome, one from Mom and one from Dad. It just so happens that Cheryl and Stacy both match me on the same segment, but they are actually matching two different sides of my chromosome.
Now let’s prove this to the doubting Thomas’s out there.
Here is the comparison of Cheryl and Stacy directly to each other. They do have one small matching segment, 6 cM, so on the small side. But they don’t match each other on any of the segments where I match both of them.
If they did match each other and me on the same locations, it would mean that we three have common ancestry. This is another example of triangulation.
The fact that they match each other on one segment could also mean they have distant common ancestry, which could be from one of our common lines or a line that I don’t share with them, or it could mean they have an identical by state (IBS) segment, meaning they come from a common population someplace hundreds to thousands of years ago.
The real message here is that you can never, ever, assume. We all know about assume, and if you do, it will. In this case, assuming would have been easy if you didn’t have the big picture, because both of these family lines contain Millers from Ohio living in close proximity in the 1800s. However these Miller lines have been proven not to be the same lines (via Yline testing) and therefore, any assumptions would have been incorrect, despite the suggestive location and in-common names. Furthermore, one Miller line married into my cousin Stacy’s line after our common ancestor, so is not blood related to me. But conclusions are easy to jump to, especially for excited or inexperienced genetic genealogists. It’s tempting even for those of us who are fairly seasoned now, but after you’ve been burned a few times, you do learn some modicum of restraint!
Downloading Your Raw Data
Downloading your raw data is not the same thing as using www.dnagedcom.com to download your chromosome start and stop locations for your matches. Your raw data is just that, raw data.
It looks like this and it’s thousands and thousands of lines long. It’s your actual values at different DNA locations. The rsid is the location on the reference human genome, followed by the chromosome number, the position address on that chromosome, and the nucleotide given to you by each of your parents.
# rsid chromosome position genotype
rs3094315 1 742429 AA
It’s doesn’t mean anything in this format, but after analyzing it using complex software, this information, combined, can tell you who you match, your ethnicity and more, of course. You’ll want to do a couple of things with your raw data file.
First, use this link to download it. They’ve hidden the link well on their site. I can never find it, so I just keep this link handy.
Consider uploading your raw data to www.gedmatch.com. It’s a donation site (meaning free but donations accepted) created for genetic genealogists by genetic genealogists and it has a lot more tools than any of the testing companies alone. Think of it as a genetic genealogy sandbox. One of the benefits is that people from all 3 testing companies, 23andMe, Family Tree DNA and Ancestry.com can upload their data and compare to each other. The down side is that many people don’t know about GedMatch and don’t utilize it.
Last, consider transferring your results to Family Tree DNA. At Family Tree DNA, the people who test are interested in genealogy – they are genealogists or their family members. You are much more likely to receive responses to inquiries and you don’t have to invite people and wait for acceptance. Even when people don’t reply to your inquiries at Family Tree DNA, you can still utilize the comparison tools to compare up to any 5 of matches, seeing where they match you and each other. I’ve utilized this tool numerous times, an example of which you can find in the Davenport article and the Autosomal Basics article. To transfer your results to Family Tree DNA for $99, which is less than retesting, click on this link, then click on “Products.”
Happy swimming in the genetic genealogy pools. Let’s hope you meet some family there!