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Thread: How many SNPs below U152 do common surnames appear?

  1. #1
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    Tierra de Ayllon
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    How many SNPs below U152 do common surnames appear?

    Approx. 40. Looking at Alex Williamson's BigTree, I counted the number of SNPs below U152 where there were commons surnames.

    It ranged from 34 to 51 SNPs with 40 SNPs being the average. Some of these are likely to be BigY results and some are FGC results and some are a mixture of both (1 surname match tested with BigY and 1 with FGC)

    39 Langley
    51 Soucek
    34 Berry
    41 Logan
    39 Nilsson/Nielson
    24 Britton/Brittin
    40 Johnson
    40 Shaddick/Shaddock
    46 Beck
    46 Hord/Hoarse
    40 Average

    If 40 SNPs below U152 equals ~400 years before present and Yfull dates U152 to 4500 ybp then that works out to 1 SNP every 102.5 years in Alex's Tree (4500-400)/40

    FGC recently stated that they are finding 1 SNP per 3 generations on average or about one every ~90 years. With BigY results thrown in it's going to be higher so 102.5 years per SNP doesn't sound unreasonable.

    As this data gets populated and more refined it's going to greatly improve our ability to better date branches/clades/sub haplogroups etc.
    Last edited by MitchellSince1893; 06-27-2016 at 06:05 AM.
    Y DNA line continued: Z142>Z12222>FGC12378>FGC12401>FGC12384
    35% English, 26% Scot/Ulster Scot, 14% Welsh, 14% German, 5% Ireland, 3% Nordic, 2% French/Dutch, 1% India
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  2. The Following 3 Users Say Thank You to MitchellSince1893 For This Useful Post:

     dp (06-27-2016),  Solothurn (10-30-2016),  wombatofthenorth (06-28-2016)

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