Mitogenomic phylogenetic analyses of the Delphinidae with an emphasis on the Globicephalinae

Julia Thidamarth Vilstrup Mouatt, Simon Y. W. Ho, Andrew David Foote, Phillip A, Morin, Danielle Kreb, Michael Krützen, Guido J. Parra, Kelly M. Robertson, Renaud de Stephanis, Philippe Verborgh, Eske Willerslev, Ludovic Antoine Alexandre Orlando, Tom Gilbert

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    Abstract

    Previous DNA-based phylogenetic studies of the Delphinidae family suggest it has undergone rapid diversification, as characterised by unresolved and poorly supported taxonomic relationships (polytomies) for some of the species within this group. Using an increased amount of sequence data we test between alternative hypotheses of soft polytomies caused by rapid speciation, slow evolutionary rate and/or insufficient sequence data, and hard polytomies caused by simultaneous speciation within this family. Combining the mitogenome sequences of five new and 12 previously published species within the Delphinidae, we used Bayesian and maximum-likelihood methods to estimate the phylogeny from partitioned and unpartitioned mitogenome sequences. Further ad hoc tests were then conducted to estimate the support for alternative topologies.
    Original languageEnglish
    Article number65
    JournalBMC Evolutionary Biology
    Volume11
    Number of pages10
    ISSN1471-2148
    DOIs
    Publication statusPublished - 1 Jan 2011

    Keywords

    • Animals
    • Bayes Theorem
    • DNA, Mitochondrial
    • Dolphins
    • Evolution, Molecular
    • Genome, Mitochondrial
    • High-Throughput Nucleotide Sequencing
    • Likelihood Functions
    • Phylogeny
    • Sequence Analysis, DNA

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