Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/16113
Title: Genetic diversity of wild populations of the grey short-tailed opossum, Monodelphis domestica (Didelphimorphia: Didelphidae), in Brazilian landscapes
Authors: Caramaschi, Fabiana P.
Nascimento, Fabrícia F.
Cerqueira, Rui
Bonvicino, Cibele R.
Affilliation: Universidade Federal do Rio de Janeiro. CCS. IB. Departamento de Ecologia. Laboratório de Vertebrados. Rio de Janeiro, RJ, Brasil / Instituto Nacional de Câncer. Divisão de Genética. Rio de Janeiro, RJ, Brasil.
Instituto Nacional de Câncer. Divisão de Genética. Rio de Janeiro, RJ, Brasil.
Universidade Federal do Rio de Janeiro. CCS. IB. Departamento de Ecologia. Laboratório de Vertebrados. Rio de Janeiro, RJ, Brasil.
Instituto Nacional de Câncer. Divisão de Genética. Rio de Janeiro, RJ, Brasil / Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios. Rio de Janeiro, RJ, Brasil.
Abstract: The characterization of the different taxa of the highly diverse genus Monodelphis is poorly understood, as is the case of their distribution. Historically, taxonomic studies of Monodelphis have been restricted to a few or single species, whereas molecular approaches have been used for estimating phylogenetic relationships between species. We carried out phylogenetic analyses of 14 Monodelphis species, including Monodelphis domestica, based on cytochrome b mitochondrial DNA sequences. Forty-five complete (1149 bp) sequences of this gene were obtained from 39 specimens of M. domestica collected in 23 localities of the Brazilian Cerrado, Pantanal, and Caatinga morphoclimatic domains; one of Monodelphis umbristriata, two of Monodelphis americana, and two of Monodelphis dimidiata. A total of 72 haplotypes were analyzed, 48 only in M. domestica. Analyses were carried out in conjunction with 46 other sequences retrieved from GenBank, including M. domestica, Monodelphis brevicaudata, Monodelphis glirina, Monodelphis emiliae, Monodelphis peruviana, Monodelphis osgoodi, Monodelphis handleyi, Monodelphis kunsi, Monodelphis americana, Monodelphis dimidiata, Monodelphis iheringi, Monodelphis reigi, and Monodelphis adusta, with six other different didelphid species used as outgroups. Maximum likelihood and Bayesian inference were similar in depicting phylogenetic relationships of different Monodelphis taxa. Two clades of M. domestica were defined on the basis of these results. Genetic distance estimates ranged from 3.2% to 6.2% between these clades of M. domestica. Population analyses were carried out to infer the likely demographic scenarios and the relationship between M. domestica haplotypes. Median-joining and spatial analyses showed two populations related to different morphoclimatic domains (Cerrado/Pantanal and Caatinga). These results indicate a population structure in M. domestica and the possibility that this taxon might represent a species complex.
Keywords: cytochrome b
geographical variation
open vegetation domains
phylogeography
keywords: Filogeografia
Variação geográfica
Domínios de vegetação aberta
Citocromos b
Issue Date: 2011
Publisher: Linnean Society of London
Citation: CARAMASCHI, Fabiana P. et al. Genetic diversity of wild populations of the grey short-tailed opossum, Monodelphis domestica (Didelphimorphia: Didelphidae), in Brazilian landscapes. Biological Journal of the Linnean Society, v.104, n.2, p.251-263, Oct. 2011.
ISSN: 0024-4066
Copyright: restricted access
Appears in Collections:IOC - Artigos de Periódicos

Files in This Item:
File Description SizeFormat 
cibele_bonvicino_etal_IOC_2011.pdf624.06 kBAdobe PDF    Request a copy


FacebookTwitterDeliciousLinkedInGoogle BookmarksBibTex Format mendeley Endnote DiggMySpace

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.