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https://repositorio.inpa.gov.br/handle/1/14729
Title: | Phylogenetic status and timescale for the diversification of Steno and Sotalia dolphins |
Authors: | Cunha, Haydée A. Moraes, Lucas C. Medeiros, Bruna V. Lailson-Brito, José Silva, Vera Maria Ferreira da Solé-Cava, António Mateo Schrago, Carlos Guerra |
Keywords: | Animals Tissue Bayes Theorem Cladistics Delphininae Dolphin Evolution Feresa Fossil Globicephalinae Grampus Maximum Likelihood Method Genome, Mitochondrial Molecular Clock Molecular Phylogeny Nonhuman Nucleotide Sequence Orcaella Orcinus Peponocephala Pseudorca River Basin Sotalia Sousa Species Diversity Stenon Stenoninae Animals Biological Model Calibration Cetacea Dna Sequence Dolphin Genetics Genome, Mitochondrial Evolution, Molecular Molecular Genetics Phylogeny Physiology South America Statistical Model Time Dna, Mitochondrial Animalss Bayes Theorem Biological Evolution Calibration Cetacea Dna, Mitochondrial Dolphins Evolution, Molecular Genome, Mitochondrial Likelihood Functions Models, Biological Models, Statistical Molecular Sequence Data Phylogeny Sequence Analysis, Dna South America Time Factors |
Issue Date: | 2011 |
metadata.dc.publisher.journal: | PLoS ONE |
metadata.dc.relation.ispartof: | Volume 6, Número 12 |
Abstract: | Molecular data have provided many insights into cetacean evolution but some unsettled issues still remain. We estimated the topology and timing of cetacean evolutionary relationships using Bayesian and maximum likelihood analyses of complete mitochondrial genomes. In order to clarify the phylogenetic placement of Sotalia and Steno within the Delphinidae, we sequenced three new delphinid mitogenomes. Our analyses support three delphinid clades: one joining Steno and Sotalia (supporting the revised subfamily Stenoninae); another placing Sousa within the Delphininae; and a third, the Globicephalinae, which includes Globicephala, Feresa, Pseudorca, Peponocephala and Grampus. We also conclude that Orcinus does not belong in the Globicephalinae, but Orcaella may be part of that subfamily. Divergence dates were estimated using the relaxed molecular clock calibrated with fossil data. We hypothesise that the timing of separation of the marine and Amazonian Sotalia species (2.3 Ma) coincided with the establishment of the modern Amazon River basin. © 2011 Cunha et al. |
metadata.dc.identifier.doi: | 10.1371/journal.pone.0028297 |
Appears in Collections: | Artigos |
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