GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2008-10 > 1222876507
Subject: Re: [DNA] Similarity at 23andME
Date: Wed, 1 Oct 2008 11:55:07 EDT
>It was good to see your name in my H2a2 mtDNA match list.
Thank you for showing me where to find everything!
Apparently 23andMe is testing more mtDNA SNPs these
days. But my 16393 was incorrectly reported. Maybe it is
because they only tested for 16393A and T but not G.
Perhaps they picked up some heteroplasmy? I am
supposed to be G, not A.
I was wondering if you were also given an extra "C"
at the 309.1 position. SMGF and FTDNA both report
my results as just 309.1C but not 309.2C. At
23andMe they are picking up the extra 309.2C which
then shifts the higher numbers away from the CRS
by 2 instead of a shift of 1. This is just another
example of why you should ignore this extra C
when comparing results with other people.
Some of the more unusual coding region SNPs are
skipped or missed.
So you and I look more closely related than we really
are. But at least they got the H2a2 correct (until the
designations change again) and they got most of
our matching markers correct I assume. I would not
use 23andMe as a substitution for the full sequence
at FTDNA. But for right now it serves a purpose
since not too many people are being tested anyway.
I gave Ann Turner all my mtDNA raw results and
she can comment if she wants to.
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