Species groups and the evolutionary diversification of tuco-tucos, genus <i>Ctenomys</i> (Rodentia: Ctenomyidae)

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dc.contributor.authorParada, Andres
dc.contributor.authorD'Elia, Guillermo
dc.contributor.authorBidau, Claudio J.
dc.contributor.authorLessa, Enrique P.
dc.date.accessioned2025-01-21T00:01:51Z
dc.date.available2025-01-21T00:01:51Z
dc.date.issued2011
dc.description.abstractWe present the most comprehensive study to date of species groups in Ctenomys (tuco-tucos), a species-rich genus of Neotropical rodents. To explore phylogenetic relationships among 38 species and 12 undescribed forms we sequenced the complete mitochondrial cytochrome-b genes of 34 specimens and incorporated 50 previously published sequences. Parsimony, likelihood, and Bayesian phylogenetic analyses were performed using additional hystricognath rodents as outgroup taxa. The basal dichotomy of Ctenomys splits C. sociabilis from the remaining tuco-tucos, within which 8 main species groups were identified: boliviensis, frater, mendocinus, opimus, magellanicus, talarum, torquatus, and tucumanus. Whereas most of these groups refer to previous clades proposed on the basis of chromosomes or morphology, the torquatus and magellanicus species groups are novel taxonomic hypotheses. However, relationships among species groups are poorly resolved. Furthmore, the positions of C. leucodon, C. maulinus, and C. tuconax are conflicting or unresolved, and they might represent additional independent lineages. On the basis of molecular dating, we estimate that most species groups originated approximately 3 million years ago.
dc.fuente.origenWOS
dc.identifier.doi10.1644/10-MAMM-A-121.1
dc.identifier.eissn1545-1542
dc.identifier.issn0022-2372
dc.identifier.urihttps://doi.org/10.1644/10-MAMM-A-121.1
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95398
dc.identifier.wosidWOS:000291759500019
dc.issue.numero3
dc.language.isoen
dc.pagina.final682
dc.pagina.inicio671
dc.revistaJournal of mammalogy
dc.rightsacceso restringido
dc.subjectCtenomys
dc.subjectcytochrome b
dc.subjectmolecular dating
dc.subjectspecies groups
dc.subjectsubterranean rodents
dc.subjectsystematics
dc.subjecttuco-tucos
dc.subject.ods15 Life on Land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleSpecies groups and the evolutionary diversification of tuco-tucos, genus <i>Ctenomys</i> (Rodentia: Ctenomyidae)
dc.typeartículo
dc.volumen92
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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