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Thread: DF27 aDNA Discussion Thread

  1. #71
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    Quote Originally Posted by cheshire View Post
    Maybe from Insular ppl who fleed the Anglo-Saxon invasion? (sorry for the dumb hypothesis lol)
    But aren't some L21 subclades specific to the Iberian Peninsula to the point that these are kinda long disconnected from the Insular ones?
    That's actually the most shared theory how there is the existance of R-L21 in Spain and Portugal:



    So it's not dumb at all. Actually, there are iberians with the so-irish R-DF49 and the so-scottish R-L1335, they are not common at all, but you can find it. I think the most common clade among iberian L21s is R-Z253, a clade that is not that common among irish and scots, and this is why some people on FB are saying that this L21 was not brought by any brittish refugee, but with germanic invasion, taking in account the high quantity of L21 found on vikings and the frecuency in Iceland and Norway. I disagree with this one.

  2. The Following User Says Thank You to alejandromb92 For This Useful Post:

     cheshire (10-27-2020)

  3. #72
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    Quote Originally Posted by alejandromb92 View Post
    That's actually the most shared theory how there is the existance of R-L21 in Spain and Portugal:



    So it's not dumb at all. Actually, there are iberians with the so-irish R-DF49 and the so-scottish R-L1335, they are not common at all, but you can find it. I think the most common clade among iberian L21s is R-Z253, a clade that is not that common among irish and scots, and this is why some people on FB are saying that this L21 was not brought by any brittish refugee, but with germanic invasion, taking in account the high quantity of L21 found on vikings and the frecuency in Iceland and Norway. I disagree with this one.
    Z253 is very common among the Irish. There are some smaller subclades among the Spanish and Portuguese that seem to be exclusive to them. That includes some smaller parts of Z253 and Z251 among others (that are large L21 subclades).

    Mike

  4. #73
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    Quote Originally Posted by ArmandoR1b View Post
    My point is that the DNA is damaged at the positions for Z195 and Z229/Z225 very often. That means Z195 being called is a rare occurrence. It happened way too often with the Iberian samples.
    Sorry if I ask a stupid question:
    There seems to be a technical problem calling certain positions like: DF27, Z195 ...
    Well, now there are a lot of known SNPs below those. I guess some of these SNPs will be easier to call, why don't they do it then? If some of these are positive, I guess you don't have to worry about DF27 anymore (well, unless these downstream SNPs didn't exist yet at the time the individual lived).
    What about trying to call equivalent SNPs when they exist?

    Thanks in advance.

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