Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish

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dc.citation.issue12
dc.citation.volume12
dc.contributor.authorQueiroz, Luiz Jardim de
dc.contributor.authorTorrente-Vilara, Gislene [UNIFESP]
dc.contributor.authorQuilodran, Claudio
dc.contributor.authorDoria, Carolina Rodrigues da Costa
dc.contributor.authorMontoya-Burgos, Juan I.
dc.coverageSan Francisco
dc.date.accessioned2020-07-02T18:52:15Z
dc.date.available2020-07-02T18:52:15Z
dc.date.issued2017
dc.description.abstractUnderstanding 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.en
dc.description.affiliationUniv Geneva, Dept Genet & Evolut, Geneva, Switzerland
dc.description.affiliationUniv Fed Sao Paulo, Dept Marine Sci, Campus Baixada Santista, Santos, SP, Brazil
dc.description.affiliationUniv Geneva, Inst Genet & Genom Geneva iGE3, Geneva, Switzerland
dc.description.affiliationUniv Fed Rondonia, Dept Biol, Porto Velho, RO, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Marine Sci, Campus Baixada Santista, Santos, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipSwiss Confederation [2012/0614]
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipSwiss National Science Foundation [SNSF 3100A0-104005]
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIGE3
dc.description.sponsorshipG. & A. Claraz Foundation
dc.description.sponsorshipIDCNPq: 229237/2013-4
dc.description.sponsorshipIDCAPES: 6632/14-9
dc.description.sponsorshipIDFAPESP: 2016/07910-0
dc.format.extent-
dc.identifierhttps://dx.doi.org/10.1371/journal.pone.0189349
dc.identifier.citationPlos One. San Francisco, v. 12, n. 12, p. -, 2017.
dc.identifier.doi10.1371/journal.pone.0189349
dc.identifier.fileWOS000418564200041.pdf
dc.identifier.issn1932-6203
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/53984
dc.identifier.wosWOS:000418564200041
dc.language.isoeng
dc.publisherPublic Library Science
dc.relation.ispartofPlos One
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleMultifactorial genetic divergence processes drive the onset of speciation in an Amazonian fishen
dc.typeinfo:eu-repo/semantics/article
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