Sexual plasticity in bony fishes:Analyzing morphological to molecular changes of sex reversal
作者机构：Department of Animal BiologySchool of Life SciencesUniversity of HyderabadP.O.Central UniversityHyderabad500046India
出 版 物：《Aquaculture and Fisheries》 (渔业学报（英文）)
年 卷 期：2022年第7卷第5期
页 面：525-539页
学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学]
基 金：The research work mentioned in this review was supported by grant-in-aid(Ref.No.EMR/2017/000718)from the Science and Engineering Research Board India to BS.ST is thankful to Senior Research Fellowship support by Council of Scientific and Industrial Research(Ref.No.09/414(1150)/2017-EMR-I) India.Authors acknowledge BUILDER Grant from DBT(Ref.No.BUILDER-DBT-BT/INF/22/SP41176/2020),India to School of Life Sciences,University of Hyderabad
主 题：Sex reversal Sequential hermaphrodite Sex steroids Gonadal transdifferentiation Sexual dimorphism Teleost
摘 要：Sex reversal is one of the characteristic properties of sexual plasticity in bony fishes wherein both natural and induced sex change happens at various stages of life cycle in different *** determination in gonochoristic species is genetically regulated,wherein the same sex is retained throughout their life span whereas hermaphrodites change their sex during development or *** sequential hermaphrodites,serial sex change occurs at different points of life ***,synchronous hermaphrodites function as both the sexes during *** variables like temperature,pH and social factors can trigger sex reversal in *** reversal through gene mutations and chemicals/hormones,including sex steroids,can be induced mostly at early developmental stages but natural sex reversal can occur at any *** reversal mechanism shows morphological to molecular changes,which are ideal for identification of sex-specific gene *** fact,gonadal transdifferentiation occurs at the molecular level through differential expression of transcription factors and steroidogenic enzyme genes vis-a-vis hormones,thereby imparting phenotypic or structural *** addition,brain shows sexual dimorphism which is mostly consequential to gonadal sex development and occasionally either *** major breakthrough in this line is the identification of sex determining genes such as dmy/dmrt1Yb,gsdfY,sox3 in the Japanese medaka and amhY in Patagonian ***,the induction of mono-sex population by favouring one sex due to sex-specific differences in growth is an important economic boom for *** review comprehensively highlights key molecular factors involved in natural and induced sex reversal conditions to illustrate teleostean sexual plasticity and its application perspectives.
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