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High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)

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High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)

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Título High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)
Autor Garcia, Angelina
Dermarchi, Dario A.
Rodrigues, Luciana Tovo
Pauro, Maia
Callegari-Jacques, Sidia Maria
Salzano, Francisco Mauro
Hutz, Mara Helena
Abstract The population of Argentina has already been studied with regard to several genetic markers, but much more data are needed for the appropriate definition of its genetic profile. This study aimed at investigating the admixture patterns and genetic structure in Central Argentina, using biparental markers and comparing the results with those previously obtained by us with mitochondrial DNA (mtDNA) in the same samples. A total of 521 healthy unrelated individuals living in 13 villages of the Córdoba and San Luis provinces were tested. The individuals were genotyped for ten autosomal ancestry informative markers (AIMs). Allele frequencies were compared with those of African, European and Native American populations, chosen to represent parental contributions. The AIM estimates indicated a greater influence of the Native American ancestry as compared to previous studies in the same or other Argentinean regions, but smaller than that observed with the mtDNA tests. These differences can be explained, respectively, by different genetic contributions between rural and urban areas, and asymmetric gene flow occurred in the past. But a most unexpected finding was the marked interpopulation genetic homogeneity found in villages located in diverse geographic environments across a wide territory, suggesting considerable gene flow.
Contido em Genetics and molecular biology. Ribeirão Preto, SP. Vol. 38, no. 3, (2015), p. 324-331
Assunto Ancestralidade
Argentina
Marcadores genéticos
[en] AIMs
[en] Córdoba
[en] Migration
[en] Population structure
[en] San Luis
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/129410
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