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

dc.creatorParada, Andrés
dc.creatorD`Elia, Guillermo
dc.creatorBidau, Claudio J.
dc.creatorLessa, Enrique P.
dc.date2016-10-04T13:57:18Z
dc.date2016-10-04T13:57:18Z
dc.date2011
dc.date.accessioned2023-09-26T22:16:46Z
dc.date.available2023-09-26T22:16:46Z
dc.identifierPARADA, Andrés; et al. Species groups and the evolutionary diversification of tuco-tucos, genus Ctenomys (Rodentia: Ctenomyidae). Journal of Mammalogy, v.92, n.3, p.671–682, 2011.
dc.identifier1545-1542
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/16066
dc.identifier0022-2372
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8877225
dc.descriptionWe 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.description2030-01-01
dc.formatapplication/pdf
dc.languageeng
dc.publisherOxford University Press
dc.rightsrestricted access
dc.subjectGrupo dos Citocromos b
dc.subjectGrupos de espécies
dc.subjectRoedores subterrâneos
dc.subjectSistemática
dc.subjectTuco-tucos
dc.subjectCtenomys
dc.subjectcytochrome b
dc.subjectmolecular dating
dc.subjectspecies groups
dc.subjectsubterranean rodents
dc.subjectsystematics
dc.subjecttuco-tucos
dc.titleSpecies groups and the evolutionary diversification of tuco-tucos, genus Ctenomys (Rodentia: Ctenomyidae)
dc.typeArticle


Este ítem pertenece a la siguiente institución