A bayesian approach to genome/linguistic relationships in native South Americans

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open access
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2013
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Universidade Federal do Rio Grande do Sul. Instituto de Biociências. Departamento de Genética. Porto Alegre, RS, Brasil
Universidade Federal do Rio Grande do Sul. Instituto de Biociências. Departamento de Genética. Porto Alegre, RS, Brasil
Universidade Federal do Rio Grande do Sul. Instituto de Biociências. Departamento de Genética. Porto Alegre, RS, Brasil
Universidade Federal do Rio Grande do Sul. Instituto de Biociências. Departamento de Genética. Porto Alegre, RS, Brasil
Pontifícia Universidade Católica do Rio Grande do Sul. Faculdade de Biociências. Porto Alegre, RS, Brasil
Universidade Federal do Rio Grande do Sul. Instituto de Biociências. Departamento de Genética. Porto Alegre, RS, Brasil
Universidade Federal do Rio Grande do Sul. Instituto de Biociências. Departamento de Genética. Porto Alegre, RS, Brasil
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Abstract
Abstract
The relationship between the evolution of genes and languages has been studied for over three decades. These studies rely on the assumption that languages, as many other cultural traits, evolve in a gene-like manner, accumulating heritable diversity through time and being subjected to evolutionary mechanisms of change. In the present work we used genetic data to evaluate South American linguistic classifications. We compared discordant models of language classifications to the current Native American genome-wide variation using realistic demographic models analyzed under an Approximate Bayesian Computation (ABC) framework. Data on 381 STRs spread along the autosomes were gathered from the literature for populations representing the five main South Amerindian linguistic groups: Andean, Arawakan, Chibchan-Paezan, Macro-Jê, and Tupí. The results indicated a higher posterior probability for the classification proposed by J.H. Greenberg in 1987, although L. Campbell's 1997 classification cannot be ruled out. Based on Greenberg's classification, it was possible to date the time of Tupí-Arawakan divergence (2.8 kya), and the time of emergence of the structure between present day major language groups in South America (3.1 kya).
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Brasil, Índios Sul-Americanos, Saúde de Populações Indígenas, Região Amazônica, Peru, Chile, Bolivia, Genética Humana, Variação genética, Linguistíca
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Brasil, Saúde de Populações Indígenas, Índios Sul-Americanos, Ecossistema Amazônico, Peru, Chile, Bolívia, Genética Humana, Variação Genética, Linguística
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AMORIM, Carlos Eduardo Guerra. et al. A bayesian approach to genome/linguistic relationships in native South Americans. Plos One, v. 8, n. 5, p. e64099, 2013.
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10.1371/journal.pone.0064099
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