Chromosomal analysis of the leptodactylids Pleurodema diplolistris and Physalaemus nattereri (Amphibia, Anura)

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dc.contributor.authorLourenco, Luciana B.
dc.contributor.authorNascimento, Josiane A. A.
dc.contributor.authorAndrade, Gilda V.
dc.contributor.authorRossa-Feres, Denise C.
dc.contributor.authorRecco-Pimentel, Shirlei M.
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Federal do Maranhão (UFMA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:27:26Z
dc.date.available2014-05-20T15:27:26Z
dc.date.issued2006-12-01
dc.description.abstractDetailed characterizations of the karyotypes of the Brazilian leptodactylid frogs Pleurodema diplolistris, the only species of Pleurodema not studied cytogenetically so far, and Physalaemus nattereri, a species in the Ph. biligonigerus group, are presented. Both karyotypes had 2n = 22 and their chromosomes had a very similar morphology, except for pair 11, which was metacentric in Pl. diplolistris and telocentric in Ph. nattereri. The localization of nucleolar organizer regions (NORs) and heterochromatic bands allowed the differentiation of chromosomes that were morphologically indistinguishable between these species, such as pairs 1, 3 and 10, which showed interstitial C-bands in Ph. nattereri, and pair 8, that had an NOR and an adjacent C-band in Pl. diplolistris. Pair 8 also has NOR-bearing chromosomes in many other Pleurodema species. However, in these species, the NOR is located proximal to the centromere on the short arm, while in Pl. diplolistris it occurred distally on the long arm, a condition that may be considered a derived state. In Ph. nattereri, the NOR occurred on chromosome I 1 and differed from the other species of the Ph. biligonigerus group. In contrast, C-banding revealed a heterochromatic block near the centromere on the short arm of pair 3, a characteristic common to all members of this group of Physalaemus.en
dc.description.affiliationUniv Estadual Campinas, Dept Biol Celular, Inst Biol, BR-13084971 Campinas, SP, Brazil
dc.description.affiliationUniv Fed Maranhao, Dept Biol, Ctr Ciências Saude, BR-65080040 Sao Luis, MA, Brazil
dc.description.affiliationUNESP, Dept Zool & Bot, Inst Biociencias Letras & Ciências Exatas, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUnespUNESP, Dept Zool & Bot, Inst Biociencias Letras & Ciências Exatas, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.format.extent481-489
dc.identifierhttp://dx.doi.org/10.1163/156853806778877103
dc.identifier.citationAmphibia-reptilia. Leiden: Brill Academic Publishers, v. 27, n. 4, p. 481-489, 2006.
dc.identifier.doi10.1163/156853806778877103
dc.identifier.issn0173-5373
dc.identifier.urihttp://hdl.handle.net/11449/37421
dc.identifier.wosWOS:000243058600001
dc.language.isoeng
dc.publisherBrill Academic Publishers
dc.relation.ispartofAmphibia Reptilia
dc.relation.ispartofjcr1.105
dc.relation.ispartofsjr0,692
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAnurapt
dc.subjectCytogeneticspt
dc.subjectheterochromatinpt
dc.subjectLeptodactylidaept
dc.subjectNORpt
dc.titleChromosomal analysis of the leptodactylids Pleurodema diplolistris and Physalaemus nattereri (Amphibia, Anura)en
dc.typeArtigo
dcterms.licensehttp://www.brill.com/resources/authors/publishing-journals-brill/self-archiving-rights-journals
dcterms.rightsHolderBrill Academic Publishers
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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Artigos - Zoologia e Botânica - IBILCE