Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/194682
Type: Artigo de periódico
Title: Cytogenetics Of Two Species Of Paratelmatobius (anura: Leptodactylidae), With Phylogenetic Comments.
Author: Lourenço, L B
Garcia, P C
Recco-Pimentel, S M
Abstract: In this paper we provide a cytogenetic analysis of Paratelmatobius cardosoi and Paratelmatobius poecilogaster. The karyotypes of both species showed a diploid number of 24 chromosomes and shared some similarity in the morphology of some pairs. On the other hand, pairs 4 and 6 widely differed between these complements. These karyotypes also differed in their NOR number and location. Size heteromorphism was seen in all NOR-bearing chromosomes of the two karyotypes. In addition, both karyotypes showed small centromeric C-bands and a conspicuous heterochromatic band in the short arm of chromosome 1, although with a different size in each species. The P. cardosoi complement also showed other strongly stained non-centromeric C-bands, with no counterparts in the P. cardosoi karyotype. Chromosome staining with fluorochromes revealed heterogeneity in the base composition of two of the non-centromeric C-bands of P. cardosoi. Comparison of the chromosomal morphology of these Paratelmatobius karyotypes with that of P. lutzii showed that the P. poecilogaster karyotype is more similar to that of P. lutzii than P. cardosoi. These cytogenetic results agree with the proposed species arrangements in the P. cardosoi and P. lutzii groups based on morphological and ecological data.
Subject: Animals
Bufonidae
Chromosome Banding
Chromosomes
Cytogenetics
Dna, Ribosomal
Female
In Situ Hybridization, Fluorescence
Karyotyping
Male
Nucleolus Organizer Region
Phylogeny
Ploidies
Sex Factors
Rights: aberto
Identifier DOI: 
Address: http://www.ncbi.nlm.nih.gov/pubmed/11433964
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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