Re: New genetic studies regarding the Indo-Aryans

From: mkelkar2003
Message: 43182
Date: 2006-01-31

--- In cybalist@yahoogroups.com, "Rob" <magwich78@...> wrote:
>
> --- In cybalist@yahoogroups.com, "mkelkar2003" <smykelkar@...> wrote:
> >
> > http://vetinari.sitesled.com/india.pdf
> >
> > "Our reappraisal indicates that pre Holocene and Holocene-era-not
> > Indo-European expansion have shaped the distinctive South Asian Y
> > chromosome landscape (Sengupta et. Al. 2005, Abstract)."
> > "In other words, there is no evidence whatsoever to conclude that
> > Central Asia has been necessarily the recent donor and NOT THE
> > RECEPTOR of the R1a lineages (Sengupta et. Al, 2005, p. 17, emphasis
> > added)."
>
> Broken link.

Your computer is broken. The link works fine. I am going to upload the
full text to the files section.


>
> > http://www.pnas.org/cgi/content/abstract/0507714103v1
> >
> > (Thanks to P. Manansala for the complete article).
> >
> > "The sharing of some Y-chromosomal haplogroups between Indian and
> > Central Asian populations is most parsimoniously explained by a
> > deep, common ancestry between the two regions, with diffusion of
> > some Indian-specific lineages northward (abstract)."
>
> How is that explanation most parsimonious? You offer no evidence in
> support of that thesis.
>
> > "Rather the high incidence of R1* and R1a throughout Central Asian
> > and East European populations (without R2 and R* in most cases) is
> > more parsimoniously explained by gene flow in the opposite direction
> > possibly with an early founder effect in South or West Asia (p. 4)."
>
> Again, more evidence is needed.

Please contact the authors directly.


> > "A pre-Neolithic chronology for the origins of Indian Y chromosomes
> > is also supported by the lack of a clear delineation between DR
> > (Dravidian) and IE (Indo-European) speakers (p. 5, parenthesis
> > added)."
>
> This is likely due to relatively small numbers of Indo-European
> migrants into India. In other words, the language spread a lot more
> than the genes. The same argument can be made for Britons, who
> overwhelmingly lack the "Indo-European" M17 gene yet speak an IE
> language (English).
>
> - Rob
>

We are not playing "heads I win and tails you lose." Then why bother
about genetics anyways?

M. kelkar