Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | https://repositorio.unifesp.br/handle/11600/53984 http://dx.doi.org/10.1371/journal.pone.0189349 |
Resumo: | Understanding the processes that drive population genetic divergence in the Amazon is challenging because of the vast scale, the environmental richness and the outstanding bio-diversity of the region. We addressed this issue by determining the genetic structure of the widespread Amazonian common sardine fish Triportheus albus (Characidae). We then examined the influence, on this species, of all previously proposed population-structuring factors, including isolation-by-distance, isolation-by-barrier (the Teotonio Falls) and isolation-by-environment using variables that describe floodplain and water characteristics. The population genetics analyses revealed an unusually strong structure with three geographical groups: Negro/Tapajos rivers, Lower Madeira/Central Amazon, and Upper Madeira. Distance-based redundancy analyses showed that the optimal model for explaining the extreme genetic structure contains all proposed structuring factors and accounts for up to 70% of the genetic structure. We further quantified the contribution of each factor via a variance-partitioning analysis. Our results demonstrate that multiple factors, often proposed as individual drivers of population divergence, have acted in conjunction to divide T. albus into three genetic lineages. Because the conjunction of multiple long-standing population-structuring processes may lead to population reproductive isolation, that is, the onset of speciation, we suggest that the multifactorial population-structuring processes highlighted in this study could account for the high speciation rate characterising the Amazon Basin. |
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de Queiroz, Luiz JardimTorrente-Vilara, Gislene [UNIFESP]Quilodran, Claudioda Costa Doria, Carolina RodriguesMontoya-Burgos, Juan I.2020-07-02T18:52:15Z2020-07-02T18:52:15Z2017Plos One. San Francisco, v. 12, n. 12, p. -, 2017.1932-6203https://repositorio.unifesp.br/handle/11600/53984http://dx.doi.org/10.1371/journal.pone.0189349WOS000418564200041.pdf10.1371/journal.pone.0189349WOS:000418564200041Understanding the processes that drive population genetic divergence in the Amazon is challenging because of the vast scale, the environmental richness and the outstanding bio-diversity of the region. We addressed this issue by determining the genetic structure of the widespread Amazonian common sardine fish Triportheus albus (Characidae). We then examined the influence, on this species, of all previously proposed population-structuring factors, including isolation-by-distance, isolation-by-barrier (the Teotonio Falls) and isolation-by-environment using variables that describe floodplain and water characteristics. The population genetics analyses revealed an unusually strong structure with three geographical groups: Negro/Tapajos rivers, Lower Madeira/Central Amazon, and Upper Madeira. Distance-based redundancy analyses showed that the optimal model for explaining the extreme genetic structure contains all proposed structuring factors and accounts for up to 70% of the genetic structure. We further quantified the contribution of each factor via a variance-partitioning analysis. Our results demonstrate that multiple factors, often proposed as individual drivers of population divergence, have acted in conjunction to divide T. albus into three genetic lineages. Because the conjunction of multiple long-standing population-structuring processes may lead to population reproductive isolation, that is, the onset of speciation, we suggest that the multifactorial population-structuring processes highlighted in this study could account for the high speciation rate characterising the Amazon Basin.Swiss Confederation [2012/0614]Brazilian government / Sciences without Borders / CNPq [229237/2013-4]Swiss National Science Foundation [SNSF 3100A0-104005]CAPES (Pro-Amazon Program: Biodiversity and Sustainability) [6632/14-9]Sao Paulo Research Foundation [FAPESP 2016/07910-0]IGE3G. & A. Claraz FoundationUniv Geneva, Dept Genet & Evolut, Geneva, SwitzerlandUniv Fed Sao Paulo, Dept Marine Sci, Campus Baixada Santista, Santos, SP, BrazilUniv Geneva, Inst Genet & Genom Geneva iGE3, Geneva, SwitzerlandUniv Fed Rondonia, Dept Biol, Porto Velho, RO, BrazilUniv Fed Sao Paulo, Dept Marine Sci, Campus Baixada Santista, Santos, SP, BrazilCNPq [229237/2013-4]CAPES [6632/14-9]FAPESP [2016/07910-0]Web of Science-engPublic Library SciencePlos OneMultifactorial genetic divergence processes drive the onset of speciation in an Amazonian fishinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSan Francisco1212info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALWOS000418564200041.pdfapplication/pdf4813479${dspace.ui.url}/bitstream/11600/53984/1/WOS000418564200041.pdf6c710bdaedf92e4e29d44e4930e6f810MD51open accessTEXTWOS000418564200041.pdf.txtWOS000418564200041.pdf.txtExtracted texttext/plain106906${dspace.ui.url}/bitstream/11600/53984/5/WOS000418564200041.pdf.txt728e641bdcda004a5dbecb7ede862a79MD55open accessTHUMBNAILWOS000418564200041.pdf.jpgWOS000418564200041.pdf.jpgIM Thumbnailimage/jpeg7547${dspace.ui.url}/bitstream/11600/53984/7/WOS000418564200041.pdf.jpg1865777d10361d64de2fe0445f71cd50MD57open access11600/539842023-06-05 19:38:25.271open accessoai:repositorio.unifesp.br:11600/53984Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-06-05T22:38:25Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish |
title |
Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish |
spellingShingle |
Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish de Queiroz, Luiz Jardim |
title_short |
Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish |
title_full |
Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish |
title_fullStr |
Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish |
title_full_unstemmed |
Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish |
title_sort |
Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish |
author |
de Queiroz, Luiz Jardim |
author_facet |
de Queiroz, Luiz Jardim Torrente-Vilara, Gislene [UNIFESP] Quilodran, Claudio da Costa Doria, Carolina Rodrigues Montoya-Burgos, Juan I. |
author_role |
author |
author2 |
Torrente-Vilara, Gislene [UNIFESP] Quilodran, Claudio da Costa Doria, Carolina Rodrigues Montoya-Burgos, Juan I. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
de Queiroz, Luiz Jardim Torrente-Vilara, Gislene [UNIFESP] Quilodran, Claudio da Costa Doria, Carolina Rodrigues Montoya-Burgos, Juan I. |
description |
Understanding the processes that drive population genetic divergence in the Amazon is challenging because of the vast scale, the environmental richness and the outstanding bio-diversity of the region. We addressed this issue by determining the genetic structure of the widespread Amazonian common sardine fish Triportheus albus (Characidae). We then examined the influence, on this species, of all previously proposed population-structuring factors, including isolation-by-distance, isolation-by-barrier (the Teotonio Falls) and isolation-by-environment using variables that describe floodplain and water characteristics. The population genetics analyses revealed an unusually strong structure with three geographical groups: Negro/Tapajos rivers, Lower Madeira/Central Amazon, and Upper Madeira. Distance-based redundancy analyses showed that the optimal model for explaining the extreme genetic structure contains all proposed structuring factors and accounts for up to 70% of the genetic structure. We further quantified the contribution of each factor via a variance-partitioning analysis. Our results demonstrate that multiple factors, often proposed as individual drivers of population divergence, have acted in conjunction to divide T. albus into three genetic lineages. Because the conjunction of multiple long-standing population-structuring processes may lead to population reproductive isolation, that is, the onset of speciation, we suggest that the multifactorial population-structuring processes highlighted in this study could account for the high speciation rate characterising the Amazon Basin. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
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2020-07-02T18:52:15Z |
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2020-07-02T18:52:15Z |
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Plos One. San Francisco, v. 12, n. 12, p. -, 2017. |
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https://repositorio.unifesp.br/handle/11600/53984 http://dx.doi.org/10.1371/journal.pone.0189349 |
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1932-6203 |
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10.1371/journal.pone.0189349 |
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Plos One. San Francisco, v. 12, n. 12, p. -, 2017. 1932-6203 WOS000418564200041.pdf 10.1371/journal.pone.0189349 WOS:000418564200041 |
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