[Gui Jian-Fang] Univ Chinese Acad Sci, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
; [Mei Jie
; Gui Jian-Fang] Huazhong Agr Univ, Freshwater Aquaculture Collaborat Innovat Ctr Hub, Minist Agr, Key Lab Freshwater Anim Breeding,Coll Fisheries, Wuhan 430070, Peoples R China
Science & Technology
; Life Sciences & Biomedicine
Life Sciences & Biomedicine - Other Topics
Aquaculture has made an enormous contribution to the world food production, especially to the sustainable supply of animal proteins. The utility of diverse reproduction strategies in fish, such as the exploiting use of unisexual gynogenesis, has created a typical case of fish genetic breeding. A number of fish species show substantial sexual dimorphism that is closely linked to multiple economic traits including growth rate and body size, and the efficient development of sex-linked genetic markers and sex control biotechnologies has provided significant approaches to increase the production and value for commercial purposes. Along with the rapid development of genomics and molecular genetic techniques, the genetic basis of sexual dimorphism has been gradually deciphered, and great progress has been made in the mechanisms of fish sex determination and identification of sex-determining genes. This review summarizes the progress to provide some directive and objective thinking for further research in this field.