Evidence of an XX/XY sex chromosome system in the fish Dormitator maculatus (Teleostei, Eleotrididae)

Carregando...
Imagem de Miniatura

Data

2006-01-01

Título da Revista

ISSN da Revista

Título de Volume

Editor

Sociedade Brasileira de Genética

Resumo

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.

Descrição

Palavras-chave

fish cytogenetics, karyotypes, Ag-NORs, C-band, sex chromosomes

Como citar

Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 29, n. 4, p. 653-655, 2006.