Maria Helena L.P. Franco is deceased.
Original Research Article
Population structure and admixture in Cerro Largo, Uruguay, based on blood markers and mitochondrial DNA polymorphisms
Article first published online: 20 JUN 2006
Copyright © 2006 Wiley-Liss, Inc.
American Journal of Human Biology
Volume 18, Issue 4, pages 513–524, July/August 2006
How to Cite
Sans, M., Merriwether, D. A., Hidalgo, P. C., Bentancor, N., Weimer, T. A., Franco, M. H. L.P., Alvarez, I., Kemp, B. M. and Salzano, F. M. (2006), Population structure and admixture in Cerro Largo, Uruguay, based on blood markers and mitochondrial DNA polymorphisms. Am. J. Hum. Biol., 18: 513–524. doi: 10.1002/ajhb.20520
- Issue published online: 20 JUN 2006
- Article first published online: 20 JUN 2006
- Manuscript Accepted: 26 JAN 2006
- Manuscript Revised: 24 JAN 2006
- Manuscript Received: 2 NOV 2005
- Comisión Sectorial de Investigación Científica (CSIC), Universidad de la República, Uruguay
- University of Michigan
- Programa de Apoio a Núcleos de Excelência, Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul, Brazil
Recent studies of the Uruguayan population revealed different amounts of Amerindian and African genetic contributions. Our previous analysis of Afro-Uruguayans from the capital city of the Department of Cerro Largo showed a high proportion of African genes, and the effects of directional mating involving Amerindian women. In this paper, we extended the analysis to a sample of more than 100 individuals representing a random sample of the population of the whole Department. Based on 18 autosomal markers and one X-linked marker, we estimated 82% European, 8% Amerindian, and 10% African contributions to their ancestry, while from seven mitochondrial DNA site-specific polymorphic markers and sequences of hypervariable segment I, we determined 49% European, 30% Amerindian, and 21% African maternal contributions. Directional matings between Amerindian women and European men were detected, but differences involving Africans were not significant. Data about the specific origins of maternal lineages were also provided, and placed in a historical context. Am. J. Hum. Biol. 18:513–524, 2006. © 2006 Wiley-Liss, Inc.