Co-Authors:
Cnaani, A., Department of Poultry and Aquaculture, Institute of Animal Science, Agricultural Research Organization, Bet-Dagan 50250, Israel
Kocher, T.D., Department of Biology, University of Maryland, College Park, MD 20742, United States
Abstract:
Cichlid species of the genus Oreochromis vary in their genetic sex-determination systems. In this study, we used microsatellite DNA markers to characterize the sex-determination system in Oreochromis tanganicae. Markers on linkage group 3 were associated with phenotypic sex, with an inheritance pattern typical of a female heterogametic species (WZ-ZZ). Further, locus duplication was observed for two separate microsatellite markers on the sex chromosome. These results further advance our understanding of the rapidly evolving sex-determination systems among these closely related tilapia species. © 2008 The Royal Society.
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