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Thread: New DNA Papers

  1. #881
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    https://www.nature.com/articles/s41598-017-16271-y

    Article | Open

    Whole Y-chromosome sequences reveal an extremely recent origin of the most common North African paternal lineage E-M183 (M81)

    Neus Solé-Morata, Carla García-Fernández, Vadim Urasin, Asmahan Bekada, Karima Fadhlaoui-Zid, Pierre Zalloua, David Comas & Francesc Calafell

    Scientific Reports 7, Article number: 15941 (2017)
    doi:10.1038/s41598-017-16271-y

    Received: 10 May 2017
    Accepted: 09 November 2017
    Published online: 21 November 2017

    Abstract

    E-M183 (E-M81) is the most frequent paternal lineage in North Africa and thus it must be considered to explore past historical and demographical processes. Here, by using whole Y chromosome sequences from 32 North African individuals, we have identified five new branches within E-M183. The validation of these variants in more than 200 North African samples, from which we also have information of 13 Y-STRs, has revealed a strong resemblance among E-M183 Y-STR haplotypes that pointed to a rapid expansion of this haplogroup. Moreover, for the first time, by using both SNP and STR data, we have provided updated estimates of the times-to-the-most-recent-common-ancestor (TMRCA) for E-M183, which evidenced an extremely recent origin of this haplogroup (2,000–3,000 ya). Our results also showed a lack of population structure within the E-M183 branch, which could be explained by the recent and rapid expansion of this haplogroup. In spite of a reduction in STR heterozygosity towards the West, which would point to an origin in the Near East, ancient DNA evidence together with our TMRCA estimates point to a local origin of E-M183 in NW Africa.

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  3. #882
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    Mostly Dutch
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    Quote Originally Posted by rozenfeld View Post

    Whole Y-chromosome sequences reveal an extremely recent origin of the most common North African paternal lineage E-M183 (M81)
    Expansion in Carthaginian times? Would be interesting.
    Ancestry (approx.):
    3/4 Dutch; 1/8 German+Belgian+French+English+Swiss; 1/16 Indonesian+Dutch Colonial; 3/64 Ashkenazi; 1/64 Sephardi.

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