2013
DOI: 10.1111/evo.12085
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PHYLOGEOGRAPHIC STRUCTURE AND OUTBREEDING DEPRESSION REVEAL EARLY STAGES OF REPRODUCTIVE ISOLATION IN THE NEOTROPICAL ORCHIDEPIDENDRUM DENTICULATUM

Abstract: Phylogeographic studies provide an important framework for investigating the mechanisms operating during the earliest stages of speciation, as reproductive barriers can be examined among divergent lineages in a geographic context. We investigated the evolution of early stages of intrinsic postmating isolation among different populations and lineages of Epidendrum denticulatum, a Neotropical orchid distributed across different biomes in South America. We estimated genetic diversity and structure for both nuclea… Show more

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Cited by 56 publications
(52 citation statements)
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References 104 publications
(170 reference statements)
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“…One possibility is that within these Smoky populations, both the sterilizing cytoplasm and the corresponding nuclear restorer have gone to fixation, but the nuclear restorer is variable within the Eastern and Appalachian populations to which they were crossed. Gene flow through pollen generally occurs over greater geographic distances than gene flow through seed (Petit et al., 2005; Pinheiro et al., 2013), which could explain why the restorer, but not the sterilizing cytoplasm, may be found in these more distant Eastern and Appalachian populations.…”
Section: Discussionmentioning
confidence: 99%
“…One possibility is that within these Smoky populations, both the sterilizing cytoplasm and the corresponding nuclear restorer have gone to fixation, but the nuclear restorer is variable within the Eastern and Appalachian populations to which they were crossed. Gene flow through pollen generally occurs over greater geographic distances than gene flow through seed (Petit et al., 2005; Pinheiro et al., 2013), which could explain why the restorer, but not the sterilizing cytoplasm, may be found in these more distant Eastern and Appalachian populations.…”
Section: Discussionmentioning
confidence: 99%
“…(2008) Estudos filogeográficos em espécies neotropicais têm sido importantes para testar zonas de refúgio na fauna e flora brasileira, e além disso, é possível inferir em outros padrões evolutivos que podem estar associados com a distribuição espacial das espécies (NOVAES et al, 2010;COOK et al, 2012;BRANDÃO, 2012;LIMA, 2012;ALVES, 2013;SCOTTI-SAINTAGNE et al, 2013;CORONADO et al, 2014;RUIZ-GARCÍA et al, 2015;MATOS et al, 2016). Entre as regiões mais estudadas se encontra a Mata Atlântica Brasileira, que possui grande parte dessa biodiversidade (CARNAVAL et al, 2009, COLOMBI et al, 2010THOMÉ et al, 2010;PINHEIRO et al, 2011;RIBEIRO et al, 2011;BATALHA-FILHO et al, 2012;AMARO et al, 2012;PINHEIRO et al, 2013;PINHEIRO et al, 2014;CARDOSO et al, 2015;RODRIGUES et al, 2015;RODRIGUES, 2015). Nesse contexto, estudos envolvendo biogeografia e filogeografia de diferentes seres vivos apontam a uma cadeia de eventos evolutivos que podem ter ocorrido no passado e que são responsáveis pela distribuição atual das espécies nos dias de hoje (TURCHETTO-ZOLET, 2013).…”
Section: Filogeografiaunclassified
“…Contudo, diversos estudos ainda se concentram em dados moleculares citoplasmáticos e, na maioria das vezes, combinados com DNA nuclear (PALMA-SILVA, 2009;NEUBIG et al, 2009;NOVAES et al, 2010;SANTOS, 2011;NOVAES et al, 2013;PINHEIRO et al, 2013;LONGO et al, 2014;PINHEIRO et al, 2014;RODRIGUES et al, 2015).…”
Section: Marcadores Molecularesunclassified
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