Oliveira, Claudio [UNESP]Toledo, Lurdes Foresti de Almeida2014-05-202014-05-202006-01-01Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 29, n. 4, p. 653-655, 2006.1415-4757http://hdl.handle.net/11449/30489The fish Dormitator maculatus has a chromosomes number of 2n = 46, females having a karyotype of 14 M, 28 SM, 2 ST and 2A and males 13 M, 28 SM, 3 ST and 2A. The presence of a heteromorphic pair in the males and a corresponding homomorphic pair in the females suggest the occurrence of an XX/XY sex chromosome system in D. maculatus. The putative X chromosome has a pericentromeric C-band positive segment and the putative Y chromosome a C-band positive short arm.653-655engfish cytogeneticskaryotypesAg-NORsC-bandsex chromosomesArtigo10.1590/S1415-47572006000400013S1415-47572006000400013Acesso abertoS1415-47572006000400013.pdf