Historical biogeography and cryptic diversity in the Callichthyinae (Siluriformes, Callichthyidae)

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMariguela, Tatiane C.
dc.creatorAlexandrou, Markos A.
dc.creatorForesti, Fausto
dc.creatorOliveira, Claudio
dc.date2014-05-27T11:29:46Z
dc.date2016-10-25T18:50:08Z
dc.date2014-05-27T11:29:46Z
dc.date2016-10-25T18:50:08Z
dc.date2013-06-21
dc.date.accessioned2017-04-06T02:27:57Z
dc.date.available2017-04-06T02:27:57Z
dc.identifierJournal of Zoological Systematics and Evolutionary Research.
dc.identifier0947-5745
dc.identifier1439-0469
dc.identifierhttp://hdl.handle.net/11449/75694
dc.identifierhttp://acervodigital.unesp.br/handle/11449/75694
dc.identifier10.1111/jzs.12029
dc.identifierWOS:000325476200007
dc.identifier2-s2.0-84879059527
dc.identifierhttp://dx.doi.org/10.1111/jzs.12029
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/896430
dc.descriptionThe family Callichthyidae, divided into the subfamilies Corydoradinae and Callichthyinae, contains more than 200 species of armoured catfishes distributed throughout the Neotropics, as well as fossil species dating from the Palaeocene. Both subfamilies are very widely distributed throughout the continent, with some species ranges extending across multiple hypothesized biogeographical barriers. Species with such vast geographical ranges could be made up of multiple cryptic populations that are genetically distinct and have diverged over time. Although relationships among Callichthyinae genera have been thoroughly investigated, the historical biogeography of the Callichthyinae and the presence of species complexes have yet to be examined. Furthermore, there is a lack of fossil-calibrated molecular phylogenies providing a time frame for the evolution of the Callichthyinae. Here, we present a novel molecular data set for all Callichthyinae genera composed of partial sequences of mitochondrial and nuclear markers. These data were used to construct a fossil-calibrated tree for the Callichthyinae and to reconstruct patterns of spatiotemporal evolution. All phylogenetic analyses [Bayesian, maximum likelihood and maximum parsimony (MP)] resulted in a single fully resolved and well-supported hypothesis for the Callichthyinae, where Dianema is the sister group of all the remaining genera. Results suggest that the ancestry of most Callichthyinae genera originated in the Amazonas basin, with a number of subsequent ancestral dispersal events between adjacent basins. High divergences in sequences and time were observed for several samples of Hoplosternum littorale, Megalechis picta and Callichthys callichthys, suggesting that these species may contain cryptic diversity. The results highlight the need for a taxonomic revision of species complexes within the Callichthyinae, which may reveal more diversity within this relatively species-poor lineage. © 2013 Blackwell Verlag GmbH.
dc.languageeng
dc.relationJournal of Zoological Systematics and Evolutionary Research
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBiogeography
dc.subjectCallichthyidae
dc.subjectCryptic species
dc.subjectFish
dc.subjectMolecular phylogenetics
dc.titleHistorical biogeography and cryptic diversity in the Callichthyinae (Siluriformes, Callichthyidae)
dc.typeOtro


Este ítem pertenece a la siguiente institución