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Archiver > GENEALOGY-DNA > 2005-05 > 1114967717


From: ellen Levy <>
Subject: Re: [DNA] YCC haplogroup G1
Date: Sun, 1 May 2005 10:15:17 -0700 (PDT)
In-Reply-To: 6667


Yes, Dennis, you are correct! I went back through my
old notes, as well as correspondence with Brian, and
noted that I also thought the majority of Jewish
results were G*, not G1. Behar specifically lists
these as "G-M201*."

I also recall writing Brian about listing Ashkenazi
G2s as "Middle Eastern." Jewish G2s are undoubtedly
from admixture with Europeans, particularly Eastern
European groups. Thus, they are not Middle Eastern in
origin. But I don't think Brian's modified his web
page in while.

So this raises the question: What are the frequencies
and haplotypes of haplogroup G* among European and
Middle Eastern groups? I assume G* is much more
common in the Middle East and rare/absent in Europe,
but I'm guessing here.

Ellen Coffman


--- Dennis Garvey <> wrote:
> Brian Hamman and I exchanged a couple of emails on
> Friday concerning the
> stats given for haplogroup G1 on his haplogroup G
> webpage:
>
> http://www.brian-hamman.com/ModalsForG.htm
>
> Brian said he made the assumption that the GxG2 in
> Behar's paper were G1.
> That's what accounts for a large portion of the N=79
> shown in his table for
> G1. He said this seemed a reasonable assumption
> since the Behar GxG2
> haplotypes resembled those given for G1 in the 2004
> Anatolia paper by
> Cinnioglu et al and in the 2002 20 YSTR Megaplex
> paper by Butler et al.
>
> I'm not sure that we can assume that the GxG2's seen
> in 7.7% of Ashkenazi
> Jews in Behar's study are G1 (G-P20). For one thing,
> Hammer's group
> discovered P20 (the marker that defines G1), so it
> seems that they would
> have included it in the Behar study if it was seen
> among that significant of
> a fraction of Ashkenazi Jews.
>
> I am only aware of six examples of G1 in published
> studies: Cinnioglu et al
> saw four examples of G1a (G-P20) and one G1*
> (G-M285/342). Another example
> is YCC sample #79 (the 20 STR haplotype is given in
> the Butler paper). It
> may just be happenstance that YCC #79 was also from
> Turkey - or it may be
> that the range of haplogroup G1 is confined to that
> region.
>
> I think it's more likely that the GxG2 group seen by
> Behar et al among
> Ashkenazi Jews can only be defined as G* (G-M201*)
> with the presently known
> set of YSNPs. Keep in mind that this doesn't mean
> that the group has any
> fewer SNPs than anyone else - it just means that no
> member of that group has
> ever been included among those re-sequenced in a
> systematic search for new
> YSNPs.
>
> Dennis Garvey
>
___________________________________________________________
> Y-Chromosome Haplogroup Website
>
>
http://freepages.genealogy.rootsweb.com/~dgarvey/DNA/markers.htm
>
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