Bayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistory
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/115088 |
Resumo: | Background: Archaeology reports millenary cultural contacts between Peruvian Coast-Andes and the Amazon Yunga, a rainforest transitional region between Andes and Lower Amazonia. To clarify the relationships between cultural and biological evolution of these populations, in particular between Amazon Yungas and Andeans, we used DNA-sequence data, a model-based Bayesian approach and several statistical validations to infer a set of demographic parameters. Results: We found that the genetic diversity of the Shimaa (an Amazon Yunga population) is a subset of that of Quechuas from Central-Andes. Using the Isolation-with-Migration population genetics model, we inferred that the Shimaa ancestors were a small subgroup that split less than 5300 years ago (after the development of complex societies) from an ancestral Andean population. After the split, the most plausible scenario compatible with our results is that the ancestors of Shimaas moved toward the Peruvian Amazon Yunga and incorporated the culture and language of some of their neighbors, but not a substantial amount of their genes. We validated our results using Approximate Bayesian Computations, posterior predictive tests and the analysis of pseudo-observed datasets. Conclusions: We presented a case study in which model-based Bayesian approaches, combined with necessary statistical validations, shed light into the prehistoric demographic relationship between Andeans and a population from the Amazon Yunga. Our results offer a testable model for the peopling of this large transitional environmental region between the Andes and the Lower Amazonia. However, studies on larger samples and involving more populations of these regions are necessary to confirm if the predominant Andean biological origin of the Shimaas is the rule, and not the exception. |
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Scliar, Marília OliveiraGouveia, Mateus HenriqueBenazzo, AndreaGhirotto, SilviaFagundes, Nelson Jurandi RosaLeal, Thiago P.Magalhães, Wagner Carlos SantosPereira, LatifeRodrigues, Maíra RibeiroSouza, Giordano Bruno SoaresCabrera, LiliaBerg, Douglas E.Gilman, Robert H.Bertorelle, GiorgioSantos, Eduardo Tarazona2015-04-09T01:58:11Z20141471-2148http://hdl.handle.net/10183/115088000955979Background: Archaeology reports millenary cultural contacts between Peruvian Coast-Andes and the Amazon Yunga, a rainforest transitional region between Andes and Lower Amazonia. To clarify the relationships between cultural and biological evolution of these populations, in particular between Amazon Yungas and Andeans, we used DNA-sequence data, a model-based Bayesian approach and several statistical validations to infer a set of demographic parameters. Results: We found that the genetic diversity of the Shimaa (an Amazon Yunga population) is a subset of that of Quechuas from Central-Andes. Using the Isolation-with-Migration population genetics model, we inferred that the Shimaa ancestors were a small subgroup that split less than 5300 years ago (after the development of complex societies) from an ancestral Andean population. After the split, the most plausible scenario compatible with our results is that the ancestors of Shimaas moved toward the Peruvian Amazon Yunga and incorporated the culture and language of some of their neighbors, but not a substantial amount of their genes. We validated our results using Approximate Bayesian Computations, posterior predictive tests and the analysis of pseudo-observed datasets. Conclusions: We presented a case study in which model-based Bayesian approaches, combined with necessary statistical validations, shed light into the prehistoric demographic relationship between Andeans and a population from the Amazon Yunga. Our results offer a testable model for the peopling of this large transitional environmental region between the Andes and the Lower Amazonia. However, studies on larger samples and involving more populations of these regions are necessary to confirm if the predominant Andean biological origin of the Shimaas is the rule, and not the exception.application/pdfengBMC Evolutionary Biology. London. Vol. 14, no. 1, (Sept. 2014), [art.] 174AmeríndiosGenética de populaçõesEvolução humanaAmérica do SulPopulation genetics inferencesHuman evolutionNative americanBayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistoryEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT000955979.pdf.txt000955979.pdf.txtExtracted Texttext/plain37838http://www.lume.ufrgs.br/bitstream/10183/115088/2/000955979.pdf.txtf7a78e6a827f60a51dc9a933a2862c43MD52ORIGINAL000955979.pdf000955979.pdfTexto completo (inglês)application/pdf1689435http://www.lume.ufrgs.br/bitstream/10183/115088/1/000955979.pdf58f8525b99321d4155815c62041481d8MD51THUMBNAIL000955979.pdf.jpg000955979.pdf.jpgGenerated Thumbnailimage/jpeg2017http://www.lume.ufrgs.br/bitstream/10183/115088/3/000955979.pdf.jpg9c427430539cfe814a17b12cc2a82932MD5310183/1150882022-10-28 04:47:43.028571oai:www.lume.ufrgs.br:10183/115088Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-10-28T07:47:43Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Bayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistory |
title |
Bayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistory |
spellingShingle |
Bayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistory Scliar, Marília Oliveira Ameríndios Genética de populações Evolução humana América do Sul Population genetics inferences Human evolution Native american |
title_short |
Bayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistory |
title_full |
Bayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistory |
title_fullStr |
Bayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistory |
title_full_unstemmed |
Bayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistory |
title_sort |
Bayesian inferences suggest that Amazon Yunga Natives diverged from Andeans less than 5000 ybp : implications for South American prehistory |
author |
Scliar, Marília Oliveira |
author_facet |
Scliar, Marília Oliveira Gouveia, Mateus Henrique Benazzo, Andrea Ghirotto, Silvia Fagundes, Nelson Jurandi Rosa Leal, Thiago P. Magalhães, Wagner Carlos Santos Pereira, Latife Rodrigues, Maíra Ribeiro Souza, Giordano Bruno Soares Cabrera, Lilia Berg, Douglas E. Gilman, Robert H. Bertorelle, Giorgio Santos, Eduardo Tarazona |
author_role |
author |
author2 |
Gouveia, Mateus Henrique Benazzo, Andrea Ghirotto, Silvia Fagundes, Nelson Jurandi Rosa Leal, Thiago P. Magalhães, Wagner Carlos Santos Pereira, Latife Rodrigues, Maíra Ribeiro Souza, Giordano Bruno Soares Cabrera, Lilia Berg, Douglas E. Gilman, Robert H. Bertorelle, Giorgio Santos, Eduardo Tarazona |
author2_role |
author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Scliar, Marília Oliveira Gouveia, Mateus Henrique Benazzo, Andrea Ghirotto, Silvia Fagundes, Nelson Jurandi Rosa Leal, Thiago P. Magalhães, Wagner Carlos Santos Pereira, Latife Rodrigues, Maíra Ribeiro Souza, Giordano Bruno Soares Cabrera, Lilia Berg, Douglas E. Gilman, Robert H. Bertorelle, Giorgio Santos, Eduardo Tarazona |
dc.subject.por.fl_str_mv |
Ameríndios Genética de populações Evolução humana América do Sul |
topic |
Ameríndios Genética de populações Evolução humana América do Sul Population genetics inferences Human evolution Native american |
dc.subject.eng.fl_str_mv |
Population genetics inferences Human evolution Native american |
description |
Background: Archaeology reports millenary cultural contacts between Peruvian Coast-Andes and the Amazon Yunga, a rainforest transitional region between Andes and Lower Amazonia. To clarify the relationships between cultural and biological evolution of these populations, in particular between Amazon Yungas and Andeans, we used DNA-sequence data, a model-based Bayesian approach and several statistical validations to infer a set of demographic parameters. Results: We found that the genetic diversity of the Shimaa (an Amazon Yunga population) is a subset of that of Quechuas from Central-Andes. Using the Isolation-with-Migration population genetics model, we inferred that the Shimaa ancestors were a small subgroup that split less than 5300 years ago (after the development of complex societies) from an ancestral Andean population. After the split, the most plausible scenario compatible with our results is that the ancestors of Shimaas moved toward the Peruvian Amazon Yunga and incorporated the culture and language of some of their neighbors, but not a substantial amount of their genes. We validated our results using Approximate Bayesian Computations, posterior predictive tests and the analysis of pseudo-observed datasets. Conclusions: We presented a case study in which model-based Bayesian approaches, combined with necessary statistical validations, shed light into the prehistoric demographic relationship between Andeans and a population from the Amazon Yunga. Our results offer a testable model for the peopling of this large transitional environmental region between the Andes and the Lower Amazonia. However, studies on larger samples and involving more populations of these regions are necessary to confirm if the predominant Andean biological origin of the Shimaas is the rule, and not the exception. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014 |
dc.date.accessioned.fl_str_mv |
2015-04-09T01:58:11Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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http://hdl.handle.net/10183/115088 |
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1471-2148 |
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000955979 |
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1471-2148 000955979 |
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http://hdl.handle.net/10183/115088 |
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dc.relation.ispartof.pt_BR.fl_str_mv |
BMC Evolutionary Biology. London. Vol. 14, no. 1, (Sept. 2014), [art.] 174 |
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