{"title":"Two phases of gonadal sex differentiation in zebrafish with ZZ/ZW sex determination system","authors":"Chen-wei Hsu , Bon-chu Chung","doi":"10.1016/j.ygcen.2024.114613","DOIUrl":null,"url":null,"abstract":"<div><div>Zebrafish sex chromosomes have been identified in the wild Nadia (NA) strain, and its sex determination belongs to the female-heterogametic ZZ/ZW system. Here, we investigate the correlation between ZZ/ZW sex chromosomes in the NA strain with sex-related factors, and sort out the complicated process of sex determination in zebrafish. Two phases exist during zebrafish sex differentiation. In the first phase, ZW gonads differentiate into juvenile ovary while ZZ gonads remain indifferent. In the second phase, ZW gonads either continue ovary development or undergo female-to-male transition, while ZZ gonads undergo direct male development. The W chromosome may contribute to the first phase while the abundance of germ cells and other factors may be involved in the second phase of sex differentiation in zebrafish.</div></div>","PeriodicalId":12582,"journal":{"name":"General and comparative endocrinology","volume":"358 ","pages":"Article 114613"},"PeriodicalIF":2.1000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"General and comparative endocrinology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0016648024001758","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENDOCRINOLOGY & METABOLISM","Score":null,"Total":0}
引用次数: 0
Abstract
Zebrafish sex chromosomes have been identified in the wild Nadia (NA) strain, and its sex determination belongs to the female-heterogametic ZZ/ZW system. Here, we investigate the correlation between ZZ/ZW sex chromosomes in the NA strain with sex-related factors, and sort out the complicated process of sex determination in zebrafish. Two phases exist during zebrafish sex differentiation. In the first phase, ZW gonads differentiate into juvenile ovary while ZZ gonads remain indifferent. In the second phase, ZW gonads either continue ovary development or undergo female-to-male transition, while ZZ gonads undergo direct male development. The W chromosome may contribute to the first phase while the abundance of germ cells and other factors may be involved in the second phase of sex differentiation in zebrafish.
期刊介绍：
General and Comparative Endocrinology publishes articles concerned with the many complexities of vertebrate and invertebrate endocrine systems at the sub-molecular, molecular, cellular and organismal levels of analysis.
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