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	Provedor de dados Genet. Mol. Biol. (1) Autor Bertollo,Luiz Antonio Carlos (1) Diniz,Débora (1) Laudicina,Alejandro (1) Palavra-chave Chromosomal markers (1) Fish cytogenetics (1) NOR (1) Ribosomal genes (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2009 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Chromosomal location of 18S and 5S rDNA sites in Triportheus fish species (Characiformes, Characidae) Genet. Mol. Biol. Diniz,Débora; Laudicina,Alejandro; Bertollo,Luiz Antonio Carlos. The location of 18S and 5S rDNA sites was determined in eight species and populations of the fish genus Triportheus by using fluorescent in situ hybridization (FISH). The males and females of all species had 2n = 52 chromosomes and a ZZ/ZW sex chromosome system. A single 18S rDNA site that was roughly equivalent to an Ag-NOR was detected on the short arms of a submetacentric pair in nearly all species, and up to two additional sites were also observed in some species. In addition, another 18S rDNA cluster was identified in a distal region on the long arms of the W chromosome; this finding corroborated previous evidence that this cluster would be a shared feature amongst Triportheus species. In T. angulatus, a heterozygotic paracentric inversion involving... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosomal markers; Fish cytogenetics; NOR; Ribosomal genes. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100006 Registros recuperados: 1 Primeira ... 1 ... Última

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