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thoughts on DNA member match?

thoughts on DNA member match?

Posted: 9 Feb 2013 1:04AM GMT
Classification: Query
I recently took the ancestry DNA test and have been matched to over 200 people with 96% or better "confidence."

None of them have I been able to find a connection to ... and they mostly seem unrelated to each other too.

Some false positives make sense and some unknown connections make sense .. but so many?

Have other people had similar or different experiences with ancestry.com's DNA matching?

Re: thoughts on DNA member match?

Posted: 9 Feb 2013 1:40AM GMT
Classification: Query
One possibility--I took a quick look at your tree and it looks like you may have Ashkenazi ancestry. That population had a lot of intermarriage, which resulted in "pedigree collapse." That can distort the match statistics. Some of the other companies adjust for this but Ancestry hasn't said whether they are.


Jim

Re: thoughts on DNA member match?

Posted: 9 Feb 2013 1:55AM GMT
Classification: Query
Another thought--many European Jewish families used patronymics rather than surnames until quite recently, so it is not unusual for people with different surnames to have a common ancestor in the 19th century.

Jim

Re: thoughts on DNA member match?

Posted: 9 Feb 2013 2:14PM GMT
Classification: Query
Jim -
Thanks for the quick and informative reply.

I think "pedigree collapse" is the most likely explanation. Being related to hundreds, whom do not even appear related to each other, w/ such high "confidence" explains the issue.
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