Scapteromys aquaticus (Rodentia: Sigmodontinae) in Brazil with comments on karyotype and phylogenetics relationships

dc.creatorBonvicino, Cibele R.
dc.creatorFernandes, Fabiano A.
dc.creatorViana, Maria C.
dc.creatorTeixeira, Bernardo R.
dc.creatorD'Andrea, Paulo S.
dc.date2015-08-19T13:49:36Z
dc.date2015-08-19T13:49:36Z
dc.date2013
dc.date.accessioned2023-09-27T00:13:06Z
dc.date.available2023-09-27T00:13:06Z
dc.identifierBONVICINO, Cibele R.; et al. Scapteromys aquaticus (Rodentia: Sigmodontinae) in Brazil with comments on karyotype and phylogenetics relationships. Zoologia, v.30, n.2, p.242–247, April 2013.
dc.identifier1984-4670
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/11585
dc.identifier10.1590/S1984-46702013000200016
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8898625
dc.descriptionThe swamp rats are distributed in Argentina, southern Paraguay, Uruguay and southern Brazil, with two species currently accepted: Scapteromys aquaticus Thomas, 1920 and Scapteromys tumidus Waterhouse, 1837. While S. aquaticus occurs in Argentina, Paraguay and western Uruguay, S. tumidus occurs in Brazil and Uruguay. Here we report for the first time the occurrence of S. aquaticus in gallery forest remnants in Southern Brazil. Karyologic analysis showed 2n = 32 and FNa = 40. Phylogenetic analyses, based on DNA sequences from the mitochondrial cytochrome-b gene indicate that the Brazilian and the Argentinian specimens of S. aquaticus shared one haplotype, while median joining analysis showed lack of population structure. This register, plus the karyotype data available for Brazilian population, recovered four karyomorphotypes in Brazil, corresponding to the two known species of Scapteromys and two unnamed species. This scenario indicates that more multidisciplinary studies are necessary to understand the actual diversity of Scapteromys.
dc.formatapplication/pdf
dc.languageeng
dc.publisherSociedade Brasileira de Zoologia
dc.rightsopen access
dc.subjectNew record
dc.subjectSouthern Brazil
dc.subjectSpecies limits
dc.subjectSwamp rat
dc.subjectManguezais
dc.subjectRatos
dc.titleScapteromys aquaticus (Rodentia: Sigmodontinae) in Brazil with comments on karyotype and phylogenetics relationships
dc.typeArticle


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