Distribution of Y chromosomes among native North Americans: A study of Athapaskan population history.by: Ripan Singh Malhi, Angelica Gonzalez-Oliver, Kari Britt B Schroeder, Brian M M Kemp, Jonathan A A Greenberg, Solomon Z Z Dobrowski, David Glenn G Smith, Andres Resendez, Tatiana Karafet, Michael Hammer, Stephen Zegura, Tatiana Brovko
American journal of physical anthropology (10 July 2008)
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摘要In this study, 231 Y chromosomes from 12 populations were typed for four diagnostic single nucleotide polymorphisms (SNPs) to determine haplogroup membership and 43 Y chromosomes from three of these populations were typed for eight short tandem repeats (STRs) to determine haplotypes. These data were combined with previously published data, amounting to 724 Y chromosomes from 26 populations in North America, and analyzed to investigate the geographic distribution of Y chromosomes among native North Americans and to test the Southern Athapaskan migration hypothesis. The results suggest that European admixture has significantly altered the distribution of Y chromosomes in North America and because of this caution should be taken when inferring prehistoric population events in North America using Y chromosome data alone. However, consistent with studies of other genetic systems, we are still able to identify close relationships among Y chromosomes in Athapaskans from the Subarctic and the Southwest, suggesting that a small number of proto-Apachean migrants from the Subarctic founded the Southwest Athapaskan populations. Am J Phys Anthropol, 2008. (c) 2008 Wiley-Liss, Inc.
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