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Review
. 2022 Jun;65(6):1091-1122.
doi: 10.1007/s11427-021-2075-x. Epub 2022 May 16.

Sex determination mechanisms and sex control approaches in aquaculture animals

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Review

Sex determination mechanisms and sex control approaches in aquaculture animals

Xi-Yin Li et al. Sci China Life Sci. 2022 Jun.

Abstract

Aquaculture is one of the most efficient modes of animal protein production and plays an important role in global food security. Aquaculture animals exhibit extraordinarily diverse sexual phenotypes and underlying mechanisms, providing an ideal system to perform sex determination research, one of the important areas in life science. Moreover, sex is also one of the most valuable traits because sexual dimorphism in growth, size, and other economic characteristics commonly exist in aquaculture animals. Here, we synthesize current knowledge of sex determination mechanisms, sex chromosome evolution, reproduction strategies, and sexual dimorphism, and also review several approaches for sex control in aquaculture animals, including artificial gynogenesis, application of sex-specific or sex chromosome-linked markers, artificial sex reversal, as well as gene editing. We anticipate that better understanding of sex determination mechanisms and innovation of sex control approaches will facilitate sustainable development of aquaculture.

Keywords: reproduction strategy; sex change; sex chromosome; sex control approach; sex determination; sex reversal; sexual dimorphism.

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