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    mtDNA and Y-chromosome diversity in Aymaras and Quechuas from Bolivia: Different stories and special genetic traits of the Andean Altiplano populations


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    Reference Type: Journal Article

    Record Number: 8414

    Author: M. Gaya-Vidal, P. Moral, N. Saenz-Ruales, P. Gerbault, L. Tonasso, M. Villena, R. Vasquez, C. M. Bravi and J. M. Dugoujon

    Year: 2011

    Title: mtDNA and Y-chromosome diversity in Aymaras and Quechuas from Bolivia: Different stories and special genetic traits of the Andean Altiplano populations

    Journal: Am J Phys Anthropol

    Volume: 145

    Issue: 2

    Pages: 215-30

    Epub Date: 2011/04/07

    Date: Jun

    Short Title: mtDNA and Y-chromosome diversity in Aymaras and Quechuas from Bolivia: Different stories and special genetic traits of the Andean Altiplano populations

    ISSN: 1096-8644 (Electronic)

    DOI: 10.1002/ajpa.21487,

    Accession Number: 21469069

    Abstract: Two Bolivian samples belonging to the two main Andean linguistic groups (Aymaras and Quechuas) were studied for mtDNA and Y-chromosome uniparental markers to evaluate sex-specific differences and give new insights into the demographic processes of the Andean region. mtDNA-coding polymorphisms, HVI-HVII control regions, 17 Y-STRs, and three SNPs were typed in two well-defined populations with adequate size samples. The two Bolivian samples showed more genetic differences for the mtDNA than for the Y-chromosome. For the mtDNA, 81% of Aymaras and 61% of Quechuas presented haplogroup B2. Native American Y-chromosomes were found in 97% of Aymaras (89% hg Q1a3a and 11% hg Q1a3*) and 78% of Quechuas (100% hg Q1a3a). Our data revealed high diversity values in the two populations, in agreement with other Andean studies. The comparisons with the available literature for both sets of markers indicated that the central Andean area is relatively homogeneous. For mtDNA, the Aymaras seemed to have been more isolated throughout time, maintaining their genetic characteristics, while the Quechuas have been more permeable to the incorporation of female foreigners and Peruvian influences. On the other hand, male mobility would have been widespread across the Andean region according to the homogeneity found in the area. Particular genetic characteristics presented by both samples support a past common origin of the Altiplano populations in the ancient Aymara territory, with independent, although related histories, with Peruvian (Quechuas) populations. Am J Phys Anthropol 2011. (c) 2011 Wiley-Liss, Inc.

    Notes: Gaya-Vidal, Magdalena, Moral, Pedro, Saenz-Ruales, Nancy, Gerbault, Pascale, Tonasso, Laure, Villena, Mercedes, Vasquez, Rene, Bravi, Claudio M, Dugoujon, Jean-Michel, United States, American journal of physical anthropology, Am J Phys Anthropol. 2011 Jun;145(2):215-30. doi: 10.1002/ajpa.21487. Epub 2011 Apr 5.,

    Author Address: Unitat d'Antropologia, Biologia Animal, Universitat de Barcelona, 08028, Spain; Laboratoire d'Anthropologie Moleculaire et Imagerie de Synthese (AMIS), FRE 2960 CNRS, Universite de Toulouse III Paul Sabatier, Toulouse 31000, France.

    Language: eng