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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleComparative cytogenetic analysis of some species of the Dendropsophus microcephalus group (Anura, Hylidae) in the light of phylogenetic inferencespt_BR
dc.contributor.authorMedeiros, LRpt_BR
dc.contributor.authorLourenco, LBpt_BR
dc.contributor.authorRossa-Feres, DCpt_BR
dc.contributor.authorLima, APpt_BR
dc.contributor.authorAndrade, GVpt_BR
dc.contributor.authorGiaretta, AApt_BR
dc.contributor.authorEgito, GTBTpt_BR
dc.contributor.authorRecco-Pimentel, SMpt_BR
unicamp.authorMedeiros, Lilian Ricco Lourenco, Luciana Bolsoni Barbosa Tabosa Egito, Gabriel Toselli Recco-Pimentel, Shirlei Maria Univ Estadual Campinas UNICAMP, Inst Biol, Dept Biol Estrutural & Func, BR-13086863 Campinas, SP, Brazilpt_BR
unicamp.authorRossa-Feres, Denise Cerqueira Univ Estadual Paulista UNESP, Inst Biociencias Letras & Ciencias Exatas, Dept Zool & Bot, BR-15054000 Sao Paulo, Brazilpt_BR
unicamp.authorLima, Albertina Pimentel INPA, BR-69011970 Manaus, Amazonas, Brazilpt_BR
unicamp.authorAndrade, Gilda Vasconcellos Univ Fed Maranhao UFMA, Dept Biol, Ctr Ciencias Biol & Saude, BR-65080040 Sao Luis, MA, Brazilpt_BR
unicamp.authorGiaretta, Ariovaldo Antonio Univ Fed Uberlandia, Fac Ciencias Integradas Pontal, Lab Anuros Neotropicais, BR-38304402 Ituiutaba, MG, Brazilpt_BR
unicamp.authorBarbosa Tabosa Egito, Gabriel Toselli Minist Just, Dept Policia Fed, BR-68908901 Macapa, AP, Brazilpt_BR
dc.subject.wosNucleolus Organizer Regionspt_BR
dc.description.abstractBackground: Dendropsophus is a monophyletic anuran genus with a diploid number of 30 chromosomes as an important synapomorphy. However, the internal phylogenetic relationships of this genus are poorly understood. Interestingly, an intriguing interspecific variation in the telocentric chromosome number has been useful in species identification. To address certain uncertainties related to one of the species groups of Dendropsophus, the D. microcephalus group, we carried out a cytogenetic analysis combined with phylogenetic inferences based on mitochondrial sequences, which aimed to aid in the analysis of chromosomal characters. Populations of Dendropsophus nanus, Dendropsophus walfordi, Dendropsophus sanborni, Dendropsophus jimi and Dendropsophus elianeae, ranging from the extreme south to the north of Brazil, were cytogenetically compared. A mitochondrial region of the ribosomal 12S gene from these populations, as well as from 30 other species of Dendropsophus, was used for the phylogenetic inferences. Phylogenetic relationships were inferred using maximum parsimony and Bayesian analyses. Results: The species D. nanus and D. walfordi exhibited identical karyotypes (2n = 30; FN = 52), with four pairs of telocentric chromosomes and a NOR located on metacentric chromosome pair 13. In all of the phylogenetic hypotheses, the paraphyly of D. nanus and D. walfordi was inferred. D. sanborni from Botucatu-SP and Torres-RS showed the same karyotype as D. jimi, with 5 pairs of telocentric chromosomes (2n = 30; FN = 50) and a terminal NOR in the long arm of the telocentric chromosome pair 12. Despite their karyotypic similarity, these species were not found to compose a monophyletic group. Finally, the phylogenetic and cytogenetic analyses did not cluster the specimens of D. elianeae according to their geographical occurrence or recognized morphotypes. Conclusions: We suggest that a taxonomic revision of the taxa D. nanus and D. walfordi is quite necessary. We also observe that the number of telocentric chromosomes is useful to distinguish among valid species in some cases, although it is unchanged in species that are not necessarily closely related phylogenetically. Therefore, inferences based on this chromosomal character must be made with caution; a proper evolutionary analysis of the karyotypic variation in Dendropsophus depends on further characterization of the telocentric chromosomes found in this
dc.relation.ispartofBmc Geneticspt_BR
dc.relation.ispartofabbreviationBMC Genet.pt_BR
dc.publisherBiomed Central Ltdpt_BR
dc.identifier.citationBmc Genetics. Biomed Central Ltd, v. 14, 2013.pt_BR
dc.sourceWeb of Sciencept_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsordocumentnumberFAPESP [proc. 00/11031-4, Proc. 03/04243-3]pt
dc.description.provenanceMade available in DSpace on 2014-08-01T18:27:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2013en
dc.description.provenanceMade available in DSpace on 2015-11-26T18:04:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2013en
Appears in Collections:Unicamp - Artigos e Outros Documentos

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