Please use this identifier to cite or link to this item: 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
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