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	Provedor de dados Genet. Mol. Biol. (2) Autor Feldberg,Eliana (2) Terencio,Maria Leandra (2) Gross,Maria Claudia (1) Marques,Diego Ferreira (1) Porto,Jorge Ivan Rebelo (1) Rodrigues,Luís Reginaldo R. (1) Santos,Fabíola Araújo dos (1) Schneider,Carlos Henrique (1) Silva,Adailton Moreira da (1) Mais... Palavra-chave Cytogenomics (1) Cytotaxonomy (1) FISH (1) Fish cytogenetics (1) Heteromorphic sex chromosome system (1) Karyotype differentiation (1) NOR phenotypes (1) RDNA (1) REX 3 (1) Tapajós river (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2016 (1) 2008 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Comparative cytogenetics of Carnegiella marthae and Carnegiella strigata (Characiformes, Gasteropelecidae) and description of a ZZ/ZW sex chromosome system Genet. Mol. Biol. Terencio,Maria Leandra; Schneider,Carlos Henrique; Gross,Maria Claudia; Silva,Adailton Moreira da; Feldberg,Eliana; Porto,Jorge Ivan Rebelo. Comparative cytogenetic analyses of hatchetfishes Carnegiella marthae and Carnegiella strigata (Gasteropelecidae) from the Rio Negro basin were performed using conventional Giemsa staining, silver (Ag) -staining and C-banding. The diploid chromosome numbers of both species equaled 2n = 50 but their karyotypes were distinct. We found evidence for sex chromosomes in C. marthae since karyotype of males presented 20 M + 12 SM + 4 ST + 14 A and ZZ ST chromosomes while the females presented 20 M + 12 SM + 4 ST + 14 A and ZW ST chromosomes of distinct size. Conversely, C. strigata presented 4 M + 4 SM + 2 ST + 40 A chromosomes without sex chromosome heteromorphism. Karyotypes of both species had two NOR-bearing SM chromosomes of distinct size indicating the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish cytogenetics; Karyotype differentiation; NOR phenotypes; Heteromorphic sex chromosome system; Cytotaxonomy. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200011 Cytogenetic variation of repetitive DNA elements in Hoplias malabaricus (Characiformes - Erythrinidae) from white, black and clear water rivers of the Amazon basin Genet. Mol. Biol. Santos,Fabíola Araújo dos; Marques,Diego Ferreira; Terencio,Maria Leandra; Feldberg,Eliana; Rodrigues,Luís Reginaldo R.. Abstract Hoplias malabaricus is a common fish species occurring in white, black and clear water rivers of the Amazon basin. Its large distribution across distinct aquatic environments can pose stressful conditions for dispersal and creates possibilities for the emergence of local adaptive profiles. We investigated the chromosomal localization of repetitive DNA markers (constitutive heterochromatin, rDNA and the transposable element REX-3) in populations from the Amazonas river (white water), the Negro river (black water) and the Tapajós river (clear water), in order to address the variation/association of cytogenomic features and environmental conditions. We found a conserved karyotypic macrostructure with a diploid number of 40 chromosomes (20... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cytogenomics; FISH; RDNA; REX 3; Tapajós river. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000100040 Registros recuperados: 2 Primeira ... 1 ... Última

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