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

dc.creatorLourenco, LB
dc.creatorNascimento, JAA
dc.creatorAndrade, GV
dc.creatorRossa-Feres, DC
dc.creatorRecco-Pimentel, SM
dc.date2006
dc.dateDEC
dc.date2014-11-15T18:49:43Z
dc.date2015-11-26T17:21:30Z
dc.date2014-11-15T18:49:43Z
dc.date2015-11-26T17:21:30Z
dc.date.accessioned2018-03-29T00:09:00Z
dc.date.available2018-03-29T00:09:00Z
dc.identifierAmphibia-reptilia. Brill Academic Publishers, v. 27, n. 4, n. 481, n. 489, 2006.
dc.identifier0173-5373
dc.identifierWOS:000243058600001
dc.identifier10.1163/156853806778877103
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/55855
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/55855
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/55855
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1283380
dc.descriptionDetailed 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.
dc.description27
dc.description4
dc.description481
dc.description489
dc.languageen
dc.publisherBrill Academic Publishers
dc.publisherLeiden
dc.publisherHolanda
dc.relationAmphibia-reptilia
dc.relationAmphib. Reptil.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectAnura
dc.subjectcytogenetics
dc.subjectheterochromatin
dc.subjectLeptodactylidae
dc.subjectNOR
dc.subjectNucleolus Organizer Regions
dc.subjectMitochondrial-dna Sequences
dc.subjectPustulosus Species Group
dc.subjectSex-chromosomes
dc.subjectFrogs
dc.subjectPhylogeny
dc.subjectEvolution
dc.titleChromosomal analysis of the leptodactylids Pleurodema diplolistris and Physalaemus nattereri (Amphibia, Anura)
dc.typeArtículos de revistas


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