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Heteromorphic sex chromosomes in three species of the genusLeporinus(Pisces, Anostomidae)

 

作者: P.M. Galetti, Jr.,   F. Foresti,   L.A.C. Bertollo,   O. Moreira Filho,  

 

期刊: Cytogenetic and Genome Research  （Karger Available online 1981）
卷期: Volume 29, issue 3  

页码: 138-142

 

ISSN:1424-8581

 

年代: 1981

 

DOI:10.1159/000131562

 

出版商: S. Karger AG

 

数据来源: Karger

 

摘要:

The present paper describes three cases of heteromorphic sex chromosomes in fishes of the genus Leporinus (Anostomidae). An XX/XY type was found in Leporinus lacustris and a ZZ/ZW type in L. silvestrii and L. obtusidens. These facts agree with the observations of Ebeling and Chen (1970), who suggested that heterogamety evolved not once but many times among the teleosts.

 

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