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

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 mark...

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Main Authors: Angelina García, Darío A. Dermarchi, Luciana Tovo-Rodrigues, Maia Pauro, Sidia M. Callegari-Jacques, Francisco M. Salzano, Mara H. Hutz
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2015-09-01
Series:Genetics and Molecular Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300324&lng=en&tlng=en
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author Angelina García
Darío A. Dermarchi
Luciana Tovo-Rodrigues
Maia Pauro
Sidia M. Callegari-Jacques
Francisco M. Salzano
Mara H. Hutz
author_facet Angelina García
Darío A. Dermarchi
Luciana Tovo-Rodrigues
Maia Pauro
Sidia M. Callegari-Jacques
Francisco M. Salzano
Mara H. Hutz
author_sort Angelina García
collection DOAJ
description 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.
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spelling doaj.art-2b90089e2c9f4bc19cbc55364671ea5d2022-12-21T20:30:54ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1678-46852015-09-0138332433110.1590/S1415-475738320140260S1415-47572015000300324High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)Angelina GarcíaDarío A. DermarchiLuciana Tovo-RodriguesMaia PauroSidia M. Callegari-JacquesFrancisco M. SalzanoMara H. HutzThe 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300324&lng=en&tlng=enAIMsCórdobaSan Luismigrationpopulation structure
spellingShingle Angelina García
Darío A. Dermarchi
Luciana Tovo-Rodrigues
Maia Pauro
Sidia M. Callegari-Jacques
Francisco M. Salzano
Mara H. Hutz
High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)
Genetics and Molecular Biology
AIMs
Córdoba
San Luis
migration
population structure
title High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)
title_full High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)
title_fullStr High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)
title_full_unstemmed High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)
title_short High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)
title_sort high interpopulation homogeneity in central argentina as assessed by ancestry informative markers aims
topic AIMs
Córdoba
San Luis
migration
population structure
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300324&lng=en&tlng=en
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