NATURAL TRIPLOIDY AND B-CHROMOSOMES IN THE NEOTROPICAL FISH GENUS ASTYANAX (CHARACIDAE)

被引：0
|
作者：
FAUAZ, G [1 ]
VICENTE, VE [1 ]
MOREIRA, O [1 ]
机构：
[1] UNIV FED SAO CARLOS,DEPT GENET & EVOLUCAE,CAIXA POSTAL 676,BR-13560905 SAO CARLOS,SP,BRAZIL
来源：
REVISTA BRASILEIRA DE GENETICA | 1994年 / 17卷 / 02期
关键词：
D O I：
暂无
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
Two species of the genus Astyanax were studied cytogenetically using standard staining and C banding: 30 specimens of A. eigenmanniorum and 74 specimens of A. scabripinnis. The karyotype of A. eigenmanniorum and the identification of three cases of natural triploidy (a male and a female of A. eigenmanniorum and a female of A. scabripinnis) are presented. Two supernumerary metacentric chromosomes, corresponding in size to the first pair, were also observed in the A. scabripinnis triploid specimen.
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页码：157 / 163
页数：7
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