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Ancestry.com DNA Results 2.0

11/20/2013

1 Comment

 
In Summer 2012, I took an Ancestry.com DNA test to analyze where geographically my DNA comes from.  I blogged about my results here.  Here is a brief summary of my original DNA breakdown:

Eastern European     71%
Central European      23%
Persian/Turkish/Caucasus     6%

The first two categories made sense to me; my Dad's whole side of the family were Polish and my mom's paternal grandparents were Croatian.  My mom's other grandmother was northern Italian, so I figured that would account for some Central European.  The Persian part was a surprise, and the region of Italy was completely left out of my results, which was unexpected because two of my great-grandparents were Italian.  My Italian great-grandfather was Sicilian, and I chalked up that 6% to Sicily's period of Arabic rule.


Ancestry.com recently reanalyzed their clients' DNA samples, based on a new, more extensive database of "control' samples that they have recently collected from around the world.  I got my new results about a month ago:

Europe     96%
     Europe East     52%
     Great Britain     31%
     Italy/Greece      11%
 Trace Regions       2%
       Finland/NW Russia     <1%
     European Jewish         <1%

West Asia     4%
     Near East     3%
     Caucasus     1%

Aha! My Italian component shows up this time; however, I am thoroughly confused by the sizable Great Britain signature that didn't show up at all last time.  It's almost as if the Great Britain signature has replaced the 'Central European' chunk from my original results.  I have no known ancestors in the family tree from Great Britain or really anywhere that close to Great Britain, so the only thing I can think of is that at least several of my Italian, Croatian, and/or Polish great-grandparents have 'British' blood in them from some migration or intermarriage a LONG time ago.  It's just that 31% is such a largish chunk, it seems like the genetic influence would be have to be in a more recent generation...
Picture
My Great Britain DNA results. Source: Ancestry.com
Much to my sister's delight, it looks as if we do have some Persian still showing up in the DNA signature, which she was excited about last time.  For those of you who have received Ancestry.com's updated DNA results, do you think they made more sense or less sense to you than the original ones?  I still do expect that our results will continue to change over time as they do more research and collect a large sampling for their control groups.

©2013, copyright Emily Kowalski Schroeder
1 Comment
Jana Last link
11/22/2013 06:54:29 am

Emily,

I want to let you know that your blog post is listed in today's Fab Finds at http://janasgenealogyandfamilyhistory.blogspot.com/2013/11/follow-friday-fab-finds-for-november-22.html

Have a great weekend!

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    Emily Kowalski Schroeder

    Emily Kowalski Schroeder

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