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Estudo citogenético comparativo em duas populaçôes de Leporinus obtusidens - Pisces, Anostomidae - da bacia do Rio Paraná, previamente separadas por acidente geográfico [PDF] / Lilian Cristina Jorge, Orlando Moreira Filho

Por: Colaborador(es): Tipo de material: ArtículoIdioma: Portugués, Inglés Editor: 2006Descripción: 4 páginasOtro título:
  • Comparative cytogenetic study in two populations of leporinus obtusidens - pisces, anostomidae - previously separated by a geographic accident from paraná river basin [Otro título]
Tema(s): En: Revista de Ictiología v. 4 n. 1-2 (1996)Resumen: Speciments of Leporinus obtusidens from two localities belonging to the Paraná river basin, been previously separated by Salto de Guaíra, named before as Sete Quedas, were cytogenetically compared. Speciments from both localities had the same diploid number of 54 chromosoma as well as the same fundamental number NF=108, for both sexes with the presence of a sexual chromosoma system of ZZ/ZW type. It was also verified a couple of RONs, been localized in the first couple of chromosoma, in terminal position in the short arm.
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Speciments of Leporinus obtusidens from two localities belonging to the Paraná river basin, been previously separated by Salto de Guaíra, named before as Sete Quedas, were cytogenetically compared. Speciments from both localities had the same diploid number of 54 chromosoma as well as the same fundamental number NF=108, for both sexes with the presence of a sexual chromosoma system of ZZ/ZW type. It was also verified a couple of RONs, been localized in the first couple of chromosoma, in terminal position in the short arm.