GENEALOGY-DNA-L Archives

From: Doug McDonald <>
Subject: Re: [DNA] Younger Dryas and R1b1c
Date: Mon, 01 Oct 2007 09:30:11 -0500
References: <BAY111-DAV7D7EFA22C7C2B93F7A871B1AD0@phx.gbl>
In-Reply-To: <BAY111-DAV7D7EFA22C7C2B93F7A871B1AD0@phx.gbl>

Lawrence Mayka wrote:

>
>> There is no reason at all to posit any sort of search for
>> Neolithic R1b1c in Native tribes because there is nothing yet
>> observed that can not be much better explained (and with good
>> data sources) as the product of admixture at some point in
>> the tribal histories.
>
> The circularity of this logic is so laughable as to be almost unworthy of
> reply. It is obvious that if one chooses not to look for evidence, one
> isn't going to find any.
>
>

That's true. But if there WAS a very substantial pre-Columbian
contribution of R1b in American Y-DNA, with emphasis on
"substantial" this would imply an earlier rather than later
start for that R1b. And that would imply that it would
be distinguishable from European R1b both by having
a somewhat different STR pattern, and by having one or
more distinguishing SNPs. Given that there is some chance
that pre-Columbian R1b is swamped by post-Columbian R1b,
the STR signature might be hard to find. So a serious
search may have to wait for better SNP detection techniques,
and such a study will need a huge number of test subjects.

Doug McDonald

This thread:

• Re: [DNA] Younger Dryas and R1b1c by Doug McDonald <>