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

Oliveira, Claudio; Toledo, Lurdes Foresti de Almeida

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/30489

Title:

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

Author(s):

Institution:

Universidade Estadual Paulista (UNESP)
Universidade de São Paulo (USP)

ISSN:

1415-4757

Sponsorship:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Abstract:

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.

Issue Date:

1-Jan-2006

Citation:

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

Time Duration:

653-655

Publisher:

Sociedade Brasileira de Genética

Keywords:

fish cytogenetics
karyotypes
Ag-NORs
C-band
sex chromosomes

Source:

http://dx.doi.org/10.1590/S1415-47572006000400013

URI:

Access Rights:

Acesso aberto

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/30489

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