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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Where the Ends Meet: An Overview of Sex Determination in Atheriniform Fishes

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Author(s):
Strussmann, Carlos A. [1] ; Yamamoto, Yoji [1] ; Hattori, Ricardo S. [1] ; Fernandino, I, Juan ; Somoza, Gustavo M. [1]
Total Authors: 5
Affiliation:
[1] Tokyo Univ Marine Sci & Technol, Grad Sch Marine Sci & Technol, Tokyo - Japan
Total Affiliations: 1
Document type: Review article
Source: SEXUAL DEVELOPMENT; v. 15, n. 1-3, p. 80-92, SEP 2021.
Web of Science Citations: 2
Abstract

Atheriniform fishes have recently emerged as attractive models for evolutionary, ecological, and molecular/physiological studies on sex determination. Many species in this group have marked temperature-dependent sex determination (TSD) and yet many species also have a sex determinant gene that provides a strong drive for male differentiation. Thus, in these species the 2 forms of sex determination that were once considered to be mutually exclusive, environmental (ESD) and genotypic (GSD) sex determination, can coexist at environmentally relevant conditions. Here, we review the current knowledge on sex determination in atheriniform fishes with emphasis on the molecular and physiological mechanisms of ESD and GSD, the coexistence and cross-talk between these 2 mechanisms, the possibility of extragonadal transduction of environmental information and/or extragonadal onset of sex determination, and the results of field studies applying novel tools such as otolith increment analysis and molecular markers of genetic sex developed for selected New World and Old World atheriniform species. We also discuss the existence of molecular and histological mechanisms to prevent the discrepant differentiation in parts of the gonads because of ambiguous or conflicting environmental and genetic signals and particularly the possibility that the female is the default state in these species. (AU)

FAPESP's process: 13/17612-9 - Genetic characterization, sex control, and germ cell transplantation in salmonids stocks from Estação Experimental de Salmonicultura de Campos do Jordão
Grantee:Ricardo Shohei Hattori
Support Opportunities: Research Grants - Young Investigators Grants