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Archiver > GENEALOGY-DNA > 2006-02 > 1139929018


From: Bonnie Schrack <>
Subject: Re: [DNA] Relative Genetics Haplogroup Maps
Date: Tue, 14 Feb 2006 09:56:58 -0500


Leo wrote:

> The Relative Genetics haplogroup maps can be found at:
>
>http://www.relativegenetics.com/genomics/images/haploMaps/E3a_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/E3b_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/G_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/I1a_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/I1b_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/I1b2_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/I1c_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/J2_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/N_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/R1a_large_RG.jpg
>http://www.relativegenetics.com/genomics/images/haploMaps/R1b_large_RG.jpg
>
> Ken (et al) should be happy to see Haplogroup I broken out.
>
> I haven't found the source for their data, but nice mapping program!
>

Well, Leo, yes, they are pretty, but though I've only looked at the J2
map, I'd like to warn people that the distribution it shows is
extremely unrepresentative of the distribution of J2 as seen in the
scientific papers that I and others have read on the J haplogroup. A
very good recent paper, Sengupta et al, has a similar type of map, which
shows a very different distribution. I believe the RG map must be based
on a small sample set, perhaps made up of their customers? Notice, for
example, the very light distribution in Italy, a major center of J2 in
Europe. This map shows higher percentages in Central Europe, in Germany,
than it does in Italy, which is clearly wrong. And there is a heavy
concentration in SW France. What's the last time anyone has seen data
from France? And what about that huge concentration near Volgograd, in
southern Russia? Not somewhere we usually look for J2.

Do you have any information on where they obtained the data for these maps?

By the way, if anyone knows what program will generate these kinds of
maps from data, please write to me off list.

Bonnie

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