Mammalian sex reversal and intersexuality: deciphering the sex-determination cascade - PubMed

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Mammalian sex reversal and intersexuality: deciphering the sex-determination cascade

D Vaiman et al. Trends Genet. 2000 Nov.

Abstract

The sex-determination cascade constitutes a model of the exquisite mechanisms of gene regulation that lead to the development of mammalian embryos. The discovery of the sex-determining region of the Y chromosome (SRY) in the early 1990s was the first crucial step towards a general understanding of sex determination. Since then, several genes that encode proteins with a role in this cascade, such as WT1, SF-1, SOX9, DAX-1 and WNT4, have been identified. Many of the interactions between these proteins have still to be elucidated, while, no-doubt, others are still to be identified. The study of mammalian intersexes forms a promising way towards the identification of the still-missing genes and a comprehensive view of mammalian sex determination. Intersexuality in the goat, studied for over a century, will, presumably, bring to light new genes involved in the female sex-determination pathway.

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