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How big is autosomal dna database.

How big is autosomal dna database.

Posted: 18 Dec 2012 11:50PM GMT
Classification: Query
I just sent my autosomal data into ancestry. Eagerly awaiting results. Does anyone know how big the atDNA database is at ancestry. For reference I have 1000 dna cousins at 23andme and 140 dna cousins at FTDNA.

Re: How big is autosomal dna database.

Posted: 19 Dec 2012 2:41PM GMT
Classification: Query
Edited: 20 Dec 2012 9:28PM GMT
The number appears to be growing very fast so not sure what it is now but reported to be already much bigger that the other two companies. When you get your test back, you will get an id number that will tell you how many are ahead of you...numbers are sequential.

For comparison, i have about 500 autosomal matches at FTDNA and about 5500 at ancestry.com. Ancestry is growing very fast since it opened up to anyone about 6-8 weeks ago. One day last week i got two pages of new matches (50 per page). I haven't tested at23&me, but their recent price drop and health analysis will probably draw more people. Although FTDNA has a sale going on right now, their price point is generally much higher. Each company has strengths and weaknesses.

I have been thrilled with results here, less so with FTDNa, and will probably do 23&me with new price structure

Correction: I just double checked my numbers and I have 58 pages (or about 2900) in my all list (50 per page) and 10 pages in my removed list (about 1000) putting my total matches at 3900 just under 4000. I think I was using my original number before I moved 1000 or so to removed list so I double counted them.

Re: How big is autosomal dna database.

Posted: 19 Dec 2012 6:15PM GMT
Classification: Query
As you may know (and I'll just mention for the sake of others), you probably have more than 1000 matches at 23andMe.

Unfortunately, 23andMe caps the results at around 1000. As newer, closer matches come in, your more distant matches go away to try to keep the number around 1000. (Why? No clue! It's definitely a huge point of contention.)

The recommended strategy (which I discovered too late) is to send genome-sharing requests to the most distant matches first, which will "lock" them in so they don't slide off if closer matches are added. Even if the people don't accept the genome-sharing invitation (and let's face it, few do, grrrr), you won't lose your more distant matches.

Re: How big is autosomal dna database.

Posted: 19 Dec 2012 6:34PM GMT
Classification: Query
When you look at your browser window when you click on Review Match for anyone, there will be a URL of this form and you can figure out your own ID in the system.

http://dna.ancestry.com/atMemberMatch.aspx?id=45133&mid=...

45133 is my AncestryDNA user ID number and mid is the match ID number for record.

The user ID appears to track the number of customers. Off the top of my head, the highest number posted anywhere was about 107,000. 23andMe has reported 180,000 customers and FTDNA does not give out the Family Finder numbers, although it must be considerably smaller based on the number of matches people report in the two systems.

I highly recommend including your match URL when you correspond with someone. If you tell them to substitute their user ID number in the URL, they "should" be able to go straight to the match record for the two of you instead of hunting through their match list for your user name.

Re: How big is autosomal dna database.

Posted: 19 Dec 2012 6:59PM GMT
Classification: Query
APTurner,
Either you or someone else posted this information about ID numbers in a much older post. I have found it very helpful. I write something like this when contacting matches: "Here's a way to get to our match directly: Substitute your ID number for the XXXXX in the following:
http://dna.ancestry.com/atMemberMatch.aspx?id=XXXXX&mid=...". Thanks for the tip!

Re: How big is autosomal dna database.

Posted: 19 Dec 2012 8:39PM GMT
Classification: Query
Well, if you are correct about the numbering, my most recent matches are 93,550,951, 93,338,047, etc. Do you think that is a correct figure??

Re: How big is autosomal dna database.

Posted: 19 Dec 2012 9:07PM GMT
Classification: Query
Nachalink, I think those numbers you gave are for the match ID, not the match's ID (hope that makes sense). We need to ask someone who just got his/her results to share an ID number to answer the question, I think.

Re: How big is autosomal dna database.

Posted: 20 Dec 2012 5:09AM GMT
Classification: Query
I read (on CeCe Moore's blog, maybe?) that Ancestry wasn't happy that people had figured out the number of customers based on the ID numbers. So, it's possible that they've created a new start point in their numbering system.

On the mega-Ancestry.com thread over at 23andMe, people were sharing their IDs for awhile, trying to determine if anything had changed with numbering. I wasn't really paying attention, but I'll give it a look to see if they found out anything.

Re: How big is autosomal dna database.

Posted: 20 Dec 2012 3:49PM GMT
Classification: Query
The latest estimate from the mega-site you mentioned, Shari: "Ancestry.com is quickly approaching 120,000 participants".

Re: How big is autosomal dna database.

Posted: 20 Dec 2012 7:12PM GMT
Classification: Query
(This was part of my last message, but since it will probably be deleted, like my message before that, it's getting its own reply... although probably just mentioning that my messages are being deleted is enough to get this one deleted. LOL+Argh!)

I wonder what percentage of the 120,000 participants most people match? I have 3000ish matches, so I match 2.5%. Amazing.

Also, I wonder when we can expect the "post-Christmas gift flood of matches" from all the kits presumably being purchased as holiday gifts? We could start a betting pool. Let's see, we need time for people to return their kits, time for processing, time to account for the extra processing required... I'm predicting February 2. Anyone else in? ;)
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