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Matching Y with mtDNA (Not in the Bedroom!)

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  • YCCHgI
    replied
    Here's another great synopsis:

    RootsWeb - the Internet's oldest and largest FREE genealogical community. An award winning genealogical resource with searchable databases, free Web space, mailing lists, message boards, and more.

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  • YCCHgI
    replied
    Mr. O'Connor:

    Here is a link to the study to which I referred:



    I believe modern Basques (please correct me if I am wrong) bear mostly mtDNA Hap V.

    This study found it remarkably absent from ancient Basque populations.

    My point was that many people assume Basques reflect the Paleolithic pop of Europe, and that data like this show what a major error that could be when forming the assumptions and models of European population shifting.

    At any rate, I read this eons ago on a web site. I think there was another study on ancient, ancient Basque mtDNA, which was even more conclusive than this one. I'll try to find it and post it soon. :-)

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  • M.O'Connor
    replied
    How old is the oldest "Y" dna that was ever sequenced?

    I'm curious about the assumtion that the Basques lines have changed. One could only speculate that. The Basque group could have been made up of different groups to start with. maybe different R gorups? maybe some other groups?

    What age are you taliking?

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  • T E Peterman
    replied
    I think that if we could actually analyze complete ancient populations, we would find that one or two y-haplotypes would comprise a majority in each population. There would be a plurality of mt-haplotypes within the same population, with none coming close to a majority.

    I say this because there is a lot more variation in reproductive success rates between males in the same population. Many will sire no children; others (those with political/ military clout) will sire dozens, even hundreds of children. This would cause most haplotypes to be eliminated through genetic drift.

    There is a lot less variation in female reproductive success rates; thus genetic drift would be less likely to eliminate haplotypes.

    A lot of people are interested in this area of study, although most population geneticists know that correlations between y-DNA & mt-DNA are coincidental, based on shared geography. The lineages that can be tracked through mutations in either y-DNA or mt-DNA are totally independent of one another.

    Timothy Peterman

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  • YCCHgI
    replied
    Another example, forgot to mention:

    With the recent testing of Neolithic farmer bones in Europe, the bones came back mtDNA HG N. Almost everyone also agrees the male Neolithics were J2 or E3b or G2. Therefore, an idea is that J2 correlates with mtDNA N.

    I've also read mtDNA testing on old Basque remains indicates our notions of their "Paleolithic" heritage is skewed, that their mtDNA HGs have changed.

    Why this is valuable: If we therefore assume the Basque Y line (R1b) represents a Paleolithic existence there, it could be wrong. Could be a recent replacement (just like the mtDNA), which would call into question many different models.

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  • YCCHgI
    started a topic Matching Y with mtDNA (Not in the Bedroom!)

    Matching Y with mtDNA (Not in the Bedroom!)

    Got your attention.

    Can anyone please post links (or opinions) on studies which have attempted to correlate mtDNA haplogroups with Y haplogroups? Basically, the point is to try to reconstruct an ancient population?

    For example, I have read that certain haplogroups (is it I, or R1b) correlate with mtDNA U or HV or something. Also, in the New World, I believe some of these relationships are quite clear.

    All input is welcome.
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