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Thread: R1b-L51 - Results discussion

  1. #201
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    Y-DNA
    R1b-U152
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    K1a-C150T

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    Quote Originally Posted by ArmandoR1b View Post
    The vast majority of people that get R1b-L51 at 23andme were tested by the v4 chip and weren't tested for the following SNPs - L52, L151, L11, P310, P311, P312, and DF27. He was tested for U106, L21, and U152 and was negative for those. It is a minority of R-L51 positive people that are also negative for all of those other SNPs especially if the direct paternal line is from Spain. He needs to get a R1b-M343 Orientation Panel at Yseq or BigY at FTDNA to determine which subclade downstream from L51 that he belongs to. He can verify which chip he was tested by if he goes to https://you.23andme.com/user/ and looks for the version next to Genotyping Chip Version.
    I am very grateful that you clarified that for me. I am still pretty dumb about this stuff even after looking at various DNA results the last few years. Is my impression correct that R1b-L51 is a mutation that is quite ancient and that the other major mutations U106, L21, and U152 are downstream from it? As these are the ones that 23andMe tests for, if one has a different downstream lineage, they get assigned the ancient mutation of R1b-L51? My wife's cousin only recently tested with 23andMe...I suspect it was in the last half of 2017. Were they already using the new chip?

  2. #202
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    Quote Originally Posted by Grossvater View Post
    I am very grateful that you clarified that for me. I am still pretty dumb about this stuff even after looking at various DNA results the last few years. Is my impression correct that R1b-L51 is a mutation that is quite ancient and that the other major mutations U106, L21, and U152 are downstream from it? As these are the ones that 23andMe tests for, if one has a different downstream lineage, they get assigned the ancient mutation of R1b-L51? My wife's cousin only recently tested with 23andMe...I suspect it was in the last half of 2017. Were they already using the new chip?
    Yes, the other major mutations U106, L21, and U152 are downstream from R1b-L51 and so are L52, L151, L11, P310, P311, P312, and DF27. All of those SNPs are ancient. DF27 is the one that is most common, but not exclusive, to the Iberian Peninsula.

    A suspicion of him testing in the last half of 2017 isn't good enough to determine which chip he was tested by. I very very strongly suspect that he was tested with the v4 chip. It's best to ask him to verify which chip he was tested with by going to https://you.23andme.com/user/ and looking for the version next to Genotyping Chip Version.

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