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A Multilocus Molecular Phylogeny of the Parrots (Psittaciformes): Support for a Gondwanan Origin during the Cretaceous

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dc.contributor.author Wright, Timothy F. en
dc.contributor.author Schirtzinger, Erin E. en
dc.contributor.author Matsumoto, Tania en
dc.contributor.author Eberhard, Jessica R. en
dc.contributor.author Graves, Gary R. en
dc.contributor.author Sanchez, Juan J. en
dc.contributor.author Capelli, Sara en
dc.contributor.author Muller, Heinrich en
dc.contributor.author Scharpegge, Julia en
dc.contributor.author Chambers, Geoffrey K. en
dc.contributor.author Fleischer, Robert C. en
dc.date.accessioned 2010-02-24T19:48:31Z
dc.date.available 2010-02-24T19:48:31Z
dc.date.issued 2008
dc.identifier.citation Wright, Timothy F., Schirtzinger, Erin E., Matsumoto, Tania, Eberhard, Jessica R., Graves, Gary R., Sanchez, Juan J., Capelli, Sara, Muller, Heinrich, Scharpegge, Julia, Chambers, Geoffrey K., and Fleischer, Robert C. 2008. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F8710">A Multilocus Molecular Phylogeny of the Parrots (Psittaciformes): Support for a Gondwanan Origin during the Cretaceous</a>." <em>Mol Biol Evol</em>. 25 (10):2141&ndash;2156. <a href="https://doi.org/10.1093/molbev/msn160">https://doi.org/10.1093/molbev/msn160</a> en
dc.identifier.uri http://hdl.handle.net/10088/8710
dc.description.abstract The question of when modern birds (Neornithes) first diversified has generated much debate among avian systematists. Fossil evidence generally supports a Tertiary diversification, whereas estimates based on molecular dating favor an earlier diversification in the Cretaceous period. In this study, we used an alternate approach, the inference of historical biogeographic patterns, to test the hypothesis that the initial radiation of the Order Psittaciformes (the parrots and cockatoos) originated on the Gondwana supercontinent during the Cretaceous. We utilized broad taxonomic sampling (representatives of 69 of the 82 extant genera and 8 outgroup taxa) and multilocus molecular character sampling (3,941 bp from mitochondrial DNA (mtDNA) genes cytochrome oxidase I and NADH dehydrogenase 2 and nuclear introns of rhodopsin intron 1, tropomyosin alpha-subunit intron 5, and transforming growth factor {beta}-2) to generate phylogenetic hypotheses for the Psittaciformes. Analyses of the combined character partitions using maximum parsimony, maximum likelihood, and Bayesian criteria produced well-resolved and topologically similar trees in which the New Zealand taxa Strigops and Nestor (Psittacidae) were sister to all other psittaciforms and the cockatoo clade (Cacatuidae) was sister to a clade containing all remaining parrots (Psittacidae). Within this large clade of Psittacidae, some traditionally recognized tribes and subfamilies were monophyletic (e.g., Arini, Psittacini, and Loriinae), whereas several others were polyphyletic (e.g., Cyclopsittacini, Platycercini, Psittaculini, and Psittacinae). Ancestral area reconstructions using our Bayesian phylogenetic hypothesis and current distributions of genera supported the hypothesis of an Australasian origin for the Psittaciformes. Separate analyses of the timing of parrot diversification constructed with both Bayesian relaxed-clock and penalized likelihood approaches showed better agreement between geologic and diversification events in the chronograms based on a Cretaceous dating of the basal split within parrots than the chronograms based on a Tertiary dating of this split, although these data are more equivocal. Taken together, our results support a Cretaceous origin of Psittaciformes in Gondwana after the separation of Africa and the India/Madagascar block with subsequent diversification through both vicariance and dispersal. These well-resolved molecular phylogenies will be of value for comparative studies of behavior, ecology, and life history in parrots. en
dc.relation.ispartof Mol Biol Evol en
dc.title A Multilocus Molecular Phylogeny of the Parrots (Psittaciformes): Support for a Gondwanan Origin during the Cretaceous en
dc.type Journal Article en
dc.identifier.srbnumber 73986
dc.identifier.doi 10.1093/molbev/msn160
rft.jtitle Mol Biol Evol
rft.volume 25
rft.issue 10
rft.spage 2141
rft.epage 2156
dc.description.SIUnit nh-vertebrate zoology en
dc.description.SIUnit nmnh en
dc.description.SIUnit nzp en
dc.citation.spage 2141
dc.citation.epage 2156

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