Re: OT: Malhi, Eshleman, haplogroup A, language, time, and direction.....

From: Lee Olsen (paleocity_at_hotmail.com)
Date: 03/24/05 

Date: 23 Mar 2005 21:34:20 -0800

G Horvat wrote:
> On 23 Mar 2005 17:14:34 -0800, "Lee Olsen" <paleocity@hotmail.com>
> wrote:
>
> >G Horvat wrote:
> >> Lee,
> >> Another way of putting it is that haplogroup A is found in its
> >> highest frequencies where other New World haplogroups are absent.
Both of
> >> these articles, which I don't think I've read yet, relate to
> >> northwestern and western North America. Haplogroup A is also
found
> >>in fairly healthy frequencies such as 30% in South American
populations
> >
> >Would these be considered 'coastal' people or 'inland' people? I
don't
> >mean exactly, but more or less in a broad sense.
>
> I thought that was what you were getting at but was not sure.

Actually that is the conclusion of the authors, at least in the
Northwest down to California.

>
> It would be easier to describe the populations which lack this
> haplogroup than the ones which have it. It is absent in the ancient
> Fuegian samples

Sounds like the A group fizzled somewhere on its journey down the
coast.

> and is found in lower than average frequencies in
> Chile and Argentina and in the American SW where the frequency was
> determined to be 0% for many populations.

The paper (Malhi) cites Lorenz and Smith, and Stone and Stoneking
saying Haida "colonized the Americas at the same time as populations
in the Amerindian group,
but isolation and genetic drift caused the pattern of reduced diversity
within them."

> Other than that, I think
> the haplogroup is fairly ubiquitous in the New World which is why its
> source should be fairly important but, hey, you do know that the
> author of one of those articles is a sci.anthropology.paleo
> contributor.
>
> I consider haplogroup B to be more coastal in both the Old World and
> New but I am certainly no expert on differentiating between the two.
> The Asian B *sub-group* which is closest to Native American B is
found
> in Japan, Taiwan, etc. all the way down to Indonesia (about the
> furthest point south that I'm aware of) and in China, where much
mtDNA
> information is presently available, the provinces which had the
> highest frequencies were all adjacent to the Yangztee River with the
> exception of Guangdong (Canton in English, I'm told).

Well, the group the authors are using to demonstrate a "prehistoric
intrusion" on the NW coast is haplogroup A.
   
>
> Gisele

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