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Archiver > GENEALOGY-DNA > 2004-08 > 1091541130


From: Doug McDonald <>
Subject: Re: [DNA] J2 HG in Scotland
Date: Tue, 03 Aug 2004 08:52:10 -0500
References: <080320040501.17794.410F1C33000DCCFF000045822200735446050B989A0E00@comcast.net>
In-Reply-To: <080320040501.17794.410F1C33000DCCFF000045822200735446050B989A0E00@comcast.net>


wrote:
> > About 40% of R1a in Scandanavia does not at all resemble that of Eastern Europe,
but is virtually identical to that from Kazakhstan - why, because
there is only a 1600 year
separation between the two groups, permitting only slight
differences in the modal values for
each and explaning why my uncle has absolutely no matches with
Eastern Europeans, but
is a close match to 2/3 of a sample of 54 R1a from the Altai and
other Central and South Asian locations


AS I have pointed out before, barring a rather unlikely case
of convergent evolution, this does mean that the "Asian" R1a and
the R1a in Kazakhstan and the Altai stem from a single founder.

What is NOT clear is whether the Scandanavian R1a subpopulation
arose from migration from central Asia (possible based on the
historical record), whether the Central Asian population
arose from migration from Scandanavia (absolutely silly)
or whether a group of people sharing a close set of haplotypes
left the founding region of R1a near the Caucausus, went up the
Urals and then branched, some going east, some west. This would
account for the lack of these haplotypes in Poland, Germany,
and near Moscow. Perhaps a careful study of haplotype diversity
will give the answer, perhaps not. Otherwise, we are stuck
with historical arguments which lack the power of true proof.

Doug McDonald

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