Artigo
Evidence of an XX/XY sex chromosome system in the fish Dormitator maculatus (Teleostei, Eleotrididae)
Fecha
2006-01-01Registro en:
Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 29, n. 4, p. 653-655, 2006.
1415-4757
10.1590/S1415-47572006000400013
S1415-47572006000400013
S1415-47572006000400013.pdf
Autor
Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
Resumen
The 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.