Genotypic sex determination in teleosts: Insights from the testis-determining amhy gene

Ricardo Shohei Hattori, Carlos Augusto Strüssmann, Juan Ignacio Fernandino, Gustavo Manuel Somoza

Research output: Contribution to journalReview articlepeer-review

34 Scopus citations

Abstract

The master sex-determining genes identified so far in fishes are clearly not conserved, as evidenced by several unrelated genes reported to play critical roles in sex determination. In this study, we reviewed the molecular process of sex determination in the Patagonian pejerrey Odontesthes hatcheri, an emerging model due to the recent discovery that a Y-chromosome linked, duplicated copy of the anti-Müllerian hormone gene, amhy plays a pivotal role in sex determination. A comparative analysis with other newly found sex-determining genes of teleost fish, DMY/. dmrt1bY, sdY, amhr2, and gsdfY is performed and alternative ideas are proposed to explain the mechanism involved in the rise of various types of non-homologous sex-determining genes.

Original languageEnglish
Pages (from-to)55-59
Number of pages5
JournalGeneral and Comparative Endocrinology
Volume192
DOIs
StatePublished - 1 Oct 2013

Keywords

  • Amhy
  • GSD
  • Odontesthes hatcheri
  • Patagonian pejerrey
  • Sex-determining genes

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