Abstract

ENRIQUEZ-VALENCIA, Cruz Elena; PRIETO-MOJICA, Camilo Alberto  and  GOMEZ-BALANTA, Francy Zorayda. Genetic regulation of sex determination and gonadal differentiation in teleost fish. Entramado [online]. 2022, vol.18, n.1, e215.  Epub June 13, 2022. ISSN 1900-3803.  https://doi.org/10.18041/1900-3803/entramado.1.7607.

Understanding the control of sex determination and sexual differentiation in fish is essential to improve aspects of management, productivity economy and conservation of the species. The objective of this review is to provide information on the main genetic-molecular mechanisms of sexual determination and differentiation in teleost fish. The information search was developed between 2019 - 2021 through bibliographic databases using phrases such as: "sex determination fish", "sexual differentiation fish" and "sex neotropical fish". The selection of the information was carried out taking into consideration a maximum of 10 years of publication, discarding documents considered as master's or doctoral theses. The sex determination can be defined by chromosome systems such as XX/XY, ZZ/ZW, XX/X0, ZZ/ Z0, XXI, XX2 and XIX2Y or modulated by different autosomal genes such as cyp19al1 fox12, figla, dmrtl: sox9, amh, and gsdf, However despite the great advances in research in the molecular area, the regulation process in the determination and differentiation of sex in fish is not yet fully elucidated, especially in species Neotropical.

Keywords : Aquaculture species; gene expression; sex determination; neotropical fish; sex chromosome; sexual plasticity.

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