GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2006-02 > 1139932451
From: "Alfred A. Aburto Jr." <>
Subject: Re: [DNA] Relative Genetics Haplogroup Maps
Date: Tue, 14 Feb 2006 07:55:34 -0800
> Bonnie Schrack wrote:
> Leo wrote:
>> The Relative Genetics haplogroup maps can be found at:
>> 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
> By the way, if anyone knows what program will generate these kinds of
> maps from data, please write to me off list.
I looked at the J2 map too. I had to smile when I saw Italy & Sicily
almost blank :-) Pretty looking map but then there is always the
question of how accurate is it? Critical questions like that always get
sort of lost in these type maps unfortunately ...
I wondered (shifting the subject somewhat) about Sengupta et. al. too!
The paper seemed to show J2a-M410 with its highest frequency in Northern
Turkey (East of Greece and South of Bulgaria, across the Bosporus
(sp?)). It seemed off and I was going look into that ... but maybe it is
By the way, the maps in Sengupta were generated by a program called
MATLAB. They have a "Mapping Toolbox" that was used (see section under
"Analysis of Haplotype Data"). A great program (MATLAB), but expensive
for the average person and there are yearly license fees to pay. I'm
thinking of a program called "Origin 7" (http://www.originlab.com/), it
can do contour mapping as well, but I haven't bitten the bullet yet ...
|Re: [DNA] Relative Genetics Haplogroup Maps by "Alfred A. Aburto Jr." <>|