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	Provedor de dados Genet. Mol. Biol. (4) Autor Aguiar-Perecin,Margarida L.R. (1) Aguilar,Cecilia Teixeira de (1) Almeida,Eunice Judith Cardoso de (1) Alvarez,Luciana (1) Galetti Junior,Pedro Manoel (1) Hernando,Alejandra Beatriz (1) Mondin,Mateus (1) Santos-Serejo,Janay A. (1) Zaracho,Víctor Hugo (1) Mais... Palavra-chave C-bands (4) Ag-NOR (2) 45S rDNA (1) 5S rDNA (1) Adenomera diptyx (1) Argentina (1) Crotalaria juncea karyotype (1) Cytogenetics (1) Dolichoplana carvalhoi (1) FISH (1) Fluorescent banding (1) Heteromorphisms (1) Karyotype (1) Land planarians (1) RDNA sites (1) Standard karyotype (1) Triploidy (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2011 (1) 2008 (1) 2007 (2) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Chromosome mapping of 5S rRNA genes differentiates Brazilian populations of Leporellus vittatus (Anostomidae, Characiformes) Genet. Mol. Biol. Aguilar,Cecilia Teixeira de; Galetti Junior,Pedro Manoel. Among the anostomid fishes, the genus Leporellus is represented by only three species: L. nattereri, endemic of the Amazon River, L. retropinnis, endemic of the Piracicaba River, and L. vittatus, widely distributed in rivers from Peru, Colombia, Guianas, and different major hydrographic basins of Brazil. A cytogenetic study carried out on specimens of Leporellus vittatus from three major Brazilian hydrographic basins evidenced a karyotype of 54 metacentric and submetacentric chromosomes. C-banding analysis revealed the presence of large pericentromeric heterochromatic segments in all chromosomes and a telomeric block coincident with the NOR sites. Ag, CMA3 or MM staining, and FISH with ribosomal probes located the 45S ribosomal genes on the terminal region... Tipo: Info:eu-repo/semantics/article Palavras-chave: Karyotype; C-bands; 45S rDNA; 5S rDNA. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200004 Comparative karyotype analysis in diploid and triploid Dolichoplana carvalhoi (Tricladida, Terricola, Rhynchodemidae) from Brazil Genet. Mol. Biol. Alvarez,Luciana; Almeida,Eunice Judith Cardoso de. In this work, we present cytogenetic data for the land planarian Dolichoplana carvalhoi. Two different karyotypes, one diploid (2n = 2x = 14 chromosomes) and one triploid (2n = 3x = 21 chromosomes), corresponding to two morphological body patterns, are described. Chromosomes from regenerating blastema were studied after routine Giemsa staining and CBG banding. Our analyses revealed heteromorphisms in chromosomes 2, 3 and 4 of the diploid karyotype and in chromosomes 1, 3 and 7 of the triploid karyotype. Further studies are needed in order to determine if the two morphological patterns of D. carvalhoi represent distinct species. Tipo: Info:eu-repo/semantics/article Palavras-chave: Land planarians; Dolichoplana carvalhoi; Cytogenetics; Triploidy; Heteromorphisms; C-bands. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000300013 Karyotype characterization of Crotalaria juncea (L.) by chromosome banding and physical mapping of 18S-5.8S-26S and 5S rRNA gene sites Genet. Mol. Biol. Mondin,Mateus; Santos-Serejo,Janay A.; Aguiar-Perecin,Margarida L.R.. The chromosomes of Crotalaria juncea, a legume of agronomic interest with a 2n = 16 karyotype composed of metacentric chromosomes, were analyzed using several cytogenetic techniques. C-banding revealed heterochromatic regions around the centromeres in all chromosomes and adjacent to the secondary constriction on the chromosome 1 short arm. Fluorescent staining with the GC-specific chromomycin A3 (CMA) highlighted these heterochromatic regions and a tiny site on the chromosome 1 long arm while the AT-specific stain 4'-6-diamidino-2-phenylindole (DAPI) induced a reversed pattern. Staining with CMA combined with AT-specific distamycin A (DA) counterstaining quenched the pericentromeric regions of all chromosomes, but enhanced fluorescence was observed at the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Crotalaria juncea karyotype; C-bands; Fluorescent banding; FISH; RDNA sites; Ag-NOR. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000100013 The karyotype of Adenomera diptyx (Boettger 1885) (Anura, Leptodactylidae) from northeastern Argentina Genet. Mol. Biol. Zaracho,Víctor Hugo; Hernando,Alejandra Beatriz. In this work we analyzed the karyotype of five populations of Adenomera diptyx from Argentina after conventional staining, Ag-NOR and C-banding. All specimens presented 2n = 26 and FN = 34. The karyotype was formed by three submetacentric, one metacentric and nine telocentric pairs. Silver staining revealed that the NOR was located on a secondary constriction in pair 7. C- banding evidenced constitutive heterochromatin at the pericentromeric region of all chromosomes. The karyotype of A. diptyx was similar to that of A. hylaedactyla (2n = 26, FN = 34) and different from that of A. andreae (2n = 26, FN = 40) in the fundamental number and secondary constriction position. It also differed from the karyotypes of A. marmorata (2n = 24, FN = 34 and 36) and of A.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Adenomera diptyx; Argentina; Standard karyotype; Ag-NOR; C-bands. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100016 Registros recuperados: 4 Primeira ... 1 ... Última

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