Re: Most recent common ancestors
- From: Doug McDonald <mcdonald@xxxxxxxxxxxxxxxxxxx>
- Date: Tue, 17 Jan 2006 12:17:02 -0600
When you speak of "race mixing" among Native Americans and Europeans, you need to remember that there is no single genetic "type" of Native American and there probably never was, just as there has never been a single language group or physical type.
Not an exact single type, but Y-chromosome haplogroup Q3 really truly DOES mean "American". True, some Siberians are Q3, but they are clearly back-migraters. Y-Haplogroup Q* is present in both America and northern Eurasia, but there are quite clear haplotypes within it that distinguish American Q* from Eurasian Q*. And the vast majority of native American men were, in 1491, Q* or Q3. True, some were and are C, and that muddies things since C is common in Siberia and Oceania, but again the haplotypes distinguish fairly well.
The mitochondria are a different matter since A, B, C, and D are quite sommon in both America and east Asia, and X is present at low rates in America and Europe.
It is quite clear now that the autosomes, in aggregate, quite clearly distinguish Asian from American.
Doug McDonald .
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