Gene and species trees of a Neotropical group of treefrogs: Genetic diversification in the Brazilian Atlantic Forest and the origin of a polyploid species

dc.contributor.authorBrunes, Tuliana O.
dc.contributor.authorSequeira, Fernando
dc.contributor.authorHaddad, Celio F. B.
dc.contributor.authorAlexandrino, Joao
dc.contributor.institutionUniv Porto
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.description.abstractThe Neotropical Phyllomedusa burmeisteri treefrog group includes four diploid (P. bahiana, P. burmeisteri, P. distincta and P. iheringii) and one tetraploid (P. tetraploidea) forms. Here we use mitochondrial and nuclear sequence variation from across its range to verify if recognized morphospecies correspond to phylogenetic clades, examine the origin of the polyploid P. tetraploidea, and compare range wide patterns of diversification to those of other BAF organisms. We compared single gene trees with one Bayesian multi-gene tree, and one Bayesian species tree inferred under a coalescent framework. Our mtDNA phylogenetic analyses showed that P. bahiana, P. burmeisteri and P. iheringii correspond to monophyletic clades, while P. distincta and P. tetraploidea were paraphyletic. the nuclear gene trees were concordant in revealing two moderately supported groups including (i) P. bahiana and P. burmeisteri (northern species) and (ii) P. distincta, P. tetraploidea and P. iheringii (southern species). the multi-gene tree and the species tree retrieved similar topologies, giving high support to the northern and southern clades, and to the sister-taxa relationship between P. tetraploidea and P. distincta. Estimates of 'MRCA suggest a major split within the P. burmeisteri group at approximate to 5 Myr (between northern and southern groups), while the main clades were originated between approximate to 0.4 and 2.5 Myr, spanning the late Pliocene and Pleistocene. Patterns of geographic and temporal diversification within the group were congruent with those uncovered for other co-distributed organisms. Independent paleoecological and geological data suggest that vicariance associated with climatic oscillations and neotectonic activity may have driven lineage divergence within the P. burmeisteri group. P. tetraploidea probably originated from polyploidization of P. distincta or from a common ancestor. (C) 2010 Elsevier Inc. All rights reserved.en
dc.description.affiliationUniv Porto, Ctr Invest Biodiversidade & Recursos Genet, CIBIO UP, P-4485661 Vairao, Portugal
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, BR-13506900 São Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFCT - Fundacao para a Ciencia e a Tecnologia
dc.description.sponsorshipBolsa de Doutoramento
dc.description.sponsorshipIDFAPESP: 2005/52727-5
dc.description.sponsorshipIDFAPESP: 2008/50928-1
dc.description.sponsorshipIDFCT - Fundacao para a Ciencia e a Tecnologia: POCI/BIA-BDE/60911/2004
dc.description.sponsorshipIDBolsa de Doutoramento: SFRH/BD/61689/2009
dc.description.sponsorshipIDBolsa de Doutoramento: SFRH/BPD/27134/2006
dc.identifier.citationMolecular Phylogenetics and Evolution. San Diego: Academic Press Inc Elsevier Science, v. 57, n. 3, p. 1120-1133, 2010.
dc.publisherElsevier B.V.
dc.relation.ispartofMolecular Phylogenetics and Evolution
dc.rightsAcesso restrito
dc.subjectBrazilian Atlantic Foresten
dc.subjectNeotropics mtDNAen
dc.subjectMultilocus species treeen
dc.titleGene and species trees of a Neotropical group of treefrogs: Genetic diversification in the Brazilian Atlantic Forest and the origin of a polyploid speciesen