Show simple item record Amaral, Ana R. Jackson, Jennifer A. Moller, Luciana M. Behergaray, Luciano B. Coelho, Maria M. 2012-11-05T21:10:44Z 2012-11-05T21:10:44Z 2012-04-11
dc.identifier doi:10.5061/dryad.6dr0475t
dc.identifier.citation Amaral AR, Jackson JA, Moller LM, Behergaray LB, Coelho MM (2012) Species tree of a recent radiation: the subfamily Delphininae (Cetacea, Mammalia). Molecular Phylogenetics and Evolution, 64(1): 243–253.
dc.description Lineages undergoing rapid radiations provide exceptional opportunities for studying speciation and adaptation, but also represent a challenge for molecular systematics because retention of ancestral polymorphisms and the occurrence of hybridization can obscure relationships among lineages. Dolphins in the subfamily Delphininae are one such case. Non-monophyly, rapid speciation events, and discordance between morphological and molecular characters have made the inference of phylogenetic relationships within this subfamily very difficult. Here we approach this problem by applying multiple methods intended to estimate species trees using a multi-gene dataset for the Delphininae (Sousa, Sotalia, Stenella, Tursiops, Delphinus and Lagenodelphis). Incongruent gene trees obtained indicate that incomplete lineage sorting and possibly hybridization are confounding the inference of species history in this group. Nonetheless, using coalescent-based methods, we have been able to extract an underlying species-tree signal from divergent histories of independent genes that supports relationships based on morphology. This is the first time a molecular study provides support for such relationships. This study further illustrates how methods of species-tree inference can be very sensitive both to the characteristics of the dataset and the evolutionary processes affecting the evolution of the group under study.
dc.relation.haspart doi:10.5061/dryad.6dr0475t/2
dc.relation.isreferencedby doi:10.1016/j.ympev.2012.04.004
dc.relation.isreferencedby PMID:22503758
dc.subject incomplete lineage sorting
dc.subject hybridization
dc.subject rapid radiation
dc.subject speciation
dc.subject species tree
dc.title Data from: Species tree of a recent radiation: the subfamily Delphininae (Cetacea, Mammalia)
dc.type Article *
dwc.ScientificName Delphinidae
dc.contributor.correspondingAuthor Amaral, Ana R.
prism.publicationName Molecular Phylogenetics and Evolution
dryad.dansTransferDate 2017-09-26T12:00:59.284-0400

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Title Amaraletal-DelphininaeSpeciesTree nexus file
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Description Nexus file for the concatenation of the 13 nuclear loci and 1 mitochondrial gene that were analyzed in order to estimate a species tree for the subfamily Delphininae.
Download Amaraletal-DelphininaeSpeciesTree nexus file.txt (244.7 Kb)
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