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From:
Subject: Re: [DNA-NEWBIE] New DNA matching tool (beta) at 23andme.com
Date: Mon, 26 Oct 2009 21:15:34 EDT


Beth-

23andme doesn't do a lot of the extensive genealogical mtDNA testing which
is why it was frustrating trying to compare my piddling few rare mutations
with others who were tested with FamilyTreeDNA or elsewhere. I know my
mtDNA haplogroup is H3a but beyond that I only have a couple HVR1 and 2
mutations that would help to narrow anything down.

But what 23andme offers by testing the whole genome is the chance to match
with others who are NOT on your mother's mother's mother's side on
back--you can connect through matches of segments in autosomal DNA. In this
particular case my half-identical strip is very large on the X chromosome and
there is another fairly extensive matching strips on chromosome one. 23andme is
able to narrow down the possibilities based on the match to 3rd to 4th
cousins as the range to consider--and we turned out to be 3rd cousins which
they said was the most probable relationship.

My mtDNA haplogroup is NOT the same as my new-found cousin because the
relationship is on my dad's mother's side. However, I now know the mtDNA of my
paternal grandmother--which would have been the same as my new cousin's! It
is U5a1* .

Joan


In a message dated 10/26/2009 9:05:52 P.M. Eastern Daylight Time,
writes:

Wow Joan that is impressive and exciting!!! Is there a major difference
in the Full Mitochondria Sequence from FamilyTreeDNA and the test by
23andme besides the Relative Finder?

Warmest regards, Beth Gay Auburn AL


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