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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Molecular genetics of sex determination in channel catfish: studies on SRY, ZFY, Bkm, and human telomeric repeats.

In amniotes, the banded krait minor (Bkm) minisatellite (GATA), the human telometric sequence (TTAGGG)7, and the Y-specific genes, ZFY and SRY, are associated with a particular sex. These sequences were studied in the channel catfish, Ictalurus punctatus. However, none was sex-specific in catfish; homologs of each were present in males and females. Our data suggest that components of mammalian sex-determining systems may be widespread and shared among the vertebrates in general. Whether those components are involved in sex determination in lower vertebrates or merely represent evolutionary precursors of sex-determining factors in amniotes remains to be determined.[1]

References

  1. Molecular genetics of sex determination in channel catfish: studies on SRY, ZFY, Bkm, and human telomeric repeats. Tiersch, T.R., Simco, B.A., Davis, K.B., Wachtel, S.S. Biol. Reprod. (1992) [Pubmed]
 
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