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	Provedor de dados Genet. Mol. Biol. (2) Autor Lima,Albertina Pimentel (2) Recco-Pimentel,Shirlei Maria (2) Aguiar Junior,Odair (1) Andrade,Gilda Vasconcellos (1) Bruschi,Daniel Pacheco (1) Busin,Carmen Sílvia (1) Carvalho,Klélia Aparecida de (1) Ficanha,Natália Cristine (1) Siqueira,Sérgio (1) Soares,Amanda (1) Sousa,Deborah Yasmim (1) Mais... Palavra-chave Ag-NOR (1) Atelopus spumarius (1) Bufonid toads (1) C-band (1) Chromosomal evolution (1) Chromosome (1) Nucleolar organizing region (1) Sperm ultrastructure (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Info:eu-repo/semantics/other (1) Ano 2019 (1) 2013 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Comparative cytogenetics of nine populations of the Rhinella genus (Anura, Bufonidae) with a highlight on their conservative karyotype Genet. Mol. Biol. Bruschi,Daniel Pacheco; Sousa,Deborah Yasmim; Soares,Amanda; Carvalho,Klélia Aparecida de; Busin,Carmen Sílvia; Ficanha,Natália Cristine; Lima,Albertina Pimentel; Andrade,Gilda Vasconcellos; Recco-Pimentel,Shirlei Maria. Abstract The genus Rhinella is one of the most diverse groups of bufonid toads, currently composed by 93 valid species and naturally distributed throughout different Neotropical ecoregions. Here, we analyze nine Brazilian populations of toads representing species of the Rhinella margaritifera and Rhinella marina groups. These new data include the first description of the R. hoogmoedi and R. proboscidae karyotypes, as well as other taxonomically unresolved forms. Chromosomal analysis of the populations revealed pronounced chromosomal uniformity (2n=22), including the diploid number and chromosomal morphology. Three different NOR-bearing chromosomes were identified: in the subterminal region of pair 10q in R. hoogmoedi, Rhinella sp. 1 and Rhinella sp. 2, in... Tipo: Info:eu-repo/semantics/other Palavras-chave: Bufonid toads; Nucleolar organizing region; Chromosomal evolution. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000300445 Cytogenetics and sperm ultrastructure of Atelopus spumarius (Anura, Bufonidae) from the Brazilian Amazon Genet. Mol. Biol. Siqueira,Sérgio; Aguiar Junior,Odair; Lima,Albertina Pimentel; Recco-Pimentel,Shirlei Maria. The current taxonomy of most Atelopus species is based on morphological and color data only. Recent studies suggest that A. spumarius may represent a species complex assigned under the same name. Karyotypic data and description of sperm ultrastructure for 13 specimens of A. spumarius are presented here for the first time. A chromosomal analysis revealed 2n = 22 chromosomes, with centromeric heterochromatin in all pairs and a nucleolar organizer region (NOR) on the telomere of pair 7. The sperm was of the bufonoid type, presenting a filiform nucleus covered by an acrosomal complex and a mitochondrial collar in the neck region. The tail was composed of an axoneme, an undulating membrane and an axial rod. A karyotype analysis of A. spumarius showed the same... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ag-NOR; Atelopus spumarius; C-band; Chromosome; Sperm ultrastructure. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000400011 Registros recuperados: 2 Primeira ... 1 ... Última

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