Maistro, Edson LuisJesus, Célia Maria deOliveira, ClaudioMoreira-Filho, OrlandoForesti, Fausto2014-05-272014-05-272004-06-01Cytologia, v. 69, n. 2, p. 181-186, 2004.0011-4545http://hdl.handle.net/11449/67747Different cytogenetic techniques were used to analyze the chromosomes of Characidium gomesi with the main objective of comparing the base composition of ZZ/ZW sex-chromosomes, B-chromosomes and the heterochromatin of A-chromosomes. The results of digestion of chromosomes with AluI restriction endonuclease (RE), silver and CMA3 staining, C-banding and fluorescence in situ hybridization (FISH) with the 18S rDNA probe suggested the existence of compositional differences between the heterochromatin of ZZ/ZW sex-chromosomes, A- and B-chromosomes, and indicated the presence of different numbers and morphology of B-chromosomes in the samples of this population.181-186engB-chromosomesCharacidium gomesiFish cytogeneticsHeterochromatin differentiationZZ/ZW sex chromosome systemCharacidiumCharaciformesCrenuchidaeTeleosteiArtigo10.1508/cytologia.69.181Acesso aberto2-s2.0-45443821832-s2.0-4544382183.pdf080479394484636747875216130383150000-0003-0757-7876