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Subject: Re: [DNA] MODERN DAY RACIAL and/or ETHNIC (%) ANALYSIS of PEOPLE GROUPS DISTR...
Date: Mon, 28 Feb 2005 09:53:52 EST

In a message dated 02/26/05 11:53:34 AM Pacific Standard Time,
writes:

> I know the standard lecture on bloodtypes not being a reliable connector
> to genetic studies. However, contiuing to think 'outside the box' for
> a moment, I wonder how bloodgroup distribution might correlate with
> Haplogroup type distribution worldwide? I've never seen that discussed
> anywhere in a study.


The ABO blood types are very ancient indeed (they're found in other
primates), so they're found in varying percentages all over the world. The actual
numbers for different populations today depend on random effects (founder effects,
genetic drift, bottlenecks) and perhaps some selective advantage of one blood
type vs another in blood-born infectious diseases.

Haplogroups on the Y are more recent developments ("only" tens of thousands
of years), and we do have some geographic correlations because of migration
pathways. However, the migrants would have taken a random selection of blood
types along with them. This diagram shows how very different populations can end
up with similar percentages of ABO (O is at the top of the triangle):

http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mga.figgrp.2507


Ann Turner - GENEALOGY-DNA List Administrator
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• MODERN DAY RACIAL and/or ETHNIC (%) ANALYSIS of PEOPLE GROUPS DISTRIBUTED BY COUNTRY by "Martha" <>

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