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Thread: Ancient I-M253 samples list

  1. #21
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    I'm so pleased you posted that spruithean, especially with the population group breakdown. Good work. I take it that the I-M253-only samples are unlikely to have good enough coverage for anyone to be able identify subclades.
    Living DNA's former Cautious mode:
    Wales-related ancestry: 86.8%
    Cornwall: 8%
    North England-related ancestry: 5.2%
    Y line: Peak District, England. Big Y match: Scania, Sweden; TMRCA 1,250 ybp (YFull);
    mtDNA: traces to Glamorgan, Wales
    Mother's Y: traces to Llanvair Discoed, Wales

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  3. #22
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    Quote Originally Posted by JonikW View Post
    I'm so pleased you posted that spruithean, especially with the population group breakdown. Good work. I take it that the I-M253-only samples are unlikely to have good enough coverage for anyone to be able identify subclades.
    There might be some errors in the estimations of their ethnic breakdowns.

    I agree, I suspect most of the samples have a fair amount of ancient DNA damage. The M253 only samples had SNP calls of ~100-130, while the F2642, Z131, L813, Z74 had calls of ~140-900.

    Nice to see an old sample of an I1-Z140+F2642+ individual.

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  5. #23
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    Adding to this thread an I1 individual from the Krzewinska et al study on Sigtuna (10th to 12th century Sweden). 84005 from Cemetery 1 was I1a1b3 (I-Z74*). He was one of six individuals with "strontium values and genetic variation that agreed with a local origin".
    Living DNA's former Cautious mode:
    Wales-related ancestry: 86.8%
    Cornwall: 8%
    North England-related ancestry: 5.2%
    Y line: Peak District, England. Big Y match: Scania, Sweden; TMRCA 1,250 ybp (YFull);
    mtDNA: traces to Glamorgan, Wales
    Mother's Y: traces to Llanvair Discoed, Wales

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  7. #24
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    Quote Originally Posted by JonikW View Post
    Adding to this thread an I1 individual from the Krzewinska et al study on Sigtuna (10th to 12th century Sweden). 84005 from Cemetery 1 was I1a1b3 (I-Z74*). He was one of six individuals with "strontium values and genetic variation that agreed with a local origin".
    I noticed this the other day, but thought nothing of it initially, quite exciting to find a new I1 in the aDNA list! It's also quite interesting that both this Swedish and another Icelandic sample are on the I-Z74 branch of the tree.
    Last edited by spruithean; 08-24-2018 at 06:14 PM.

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  9. #25
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    Has we found Z17925?
    V2 K15 (Average France) => North Sea : 27.46 (28.25) - Atlantic : 21.26 (26.05) - West Med : 19.05 (15.53) - Baltic : 9.17 (8.22) - Eastern Euro : 8.80 (6.32) - West Asian : 6.31 (4.66) - East Med : 4.85 (6.72) - Red Sea : 2.08 (2.83) - Amerindian : 1.02 (0.20)

  10. #26
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    Quote Originally Posted by The_Lyonnist View Post
    Has we found Z17925?
    Not to my knowledge, but it is only a matter of time until we find more ancient I1 whether they be DF29 or non-DF29 clades.

  11. #27
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    Quote Originally Posted by spruithean View Post
    I noticed this the other day, but thought nothing of it initially, quite exciting to find a new I1 in the aDNA list! It's also quite interesting that both this Swedish and another Icelandic sample are on the I-Z74 branch of the tree.
    Most of the Z74 clades are Swedish and Finnish.
    Some of them are Norwegian, these are the different branches we see for the greatest number in the British Isles and Iceland. The first Z74 was probably an East or South Swede.
    Recent Ancestry, full Normand. Known Genealogy 7/8 of the Cotentin peninsula 1/8 region of Coutances. Unfortunately, there are many missing branches on the maternal side.

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  13. #28
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    Quote Originally Posted by spruithean View Post
    Not to my knowledge, but it is only a matter of time until we find more ancient I1 whether they be DF29 or non-DF29 clades.
    I wonder how long cremation was practiced in Scandinavia prior to Christianity and if that could be a cause for the lack of ancient I1a samples?

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  15. #29
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    Quote Originally Posted by mwauthy View Post
    I wonder how long cremation was practiced in Scandinavia prior to Christianity and if that could be a cause for the lack of ancient I1a samples?
    That definitely has an influence on the search for ancient I1. Hopefully we can still find a good amount despite cremation practices.

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  17. #30
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    Quote Originally Posted by spruithean View Post
    That definitely has an influence on the search for ancient I1. Hopefully we can still find a good amount despite cremation practices.
    The case is similar with the ancestors of the Celts, the Urnfield culture
    Recent Ancestry, full Normand. Known Genealogy 7/8 of the Cotentin peninsula 1/8 region of Coutances. Unfortunately, there are many missing branches on the maternal side.

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