Evidences of Z- and W-Linked Regions on the Genome of Fenneropenaeus chinensis

文献类型: 外文期刊

第一作者: Wang, Qiong

作者: Wang, Qiong;Lv, Jianjian;Ren, Xianyun;Wang, Jiajia;Jia, Shaoting;He, Yuying;Li, Jian;Wang, Qiong;Lv, Jianjian;Ren, Xianyun;Wang, Jiajia;Jia, Shaoting;He, Yuying;Li, Jian

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关键词: Crustacea; sex differentiation; shrimp; genome; Z chromosome

期刊名称:FRONTIERS IN MARINE SCIENCE ( 影响因子:4.912; 五年影响因子:5.125 )

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年卷期: 2021 年 8 卷

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收录情况: SCI

摘要: Fenneropenaeus chinensis is a commercially cultured shrimp in China. F. chinensis adults show significant sexual dimorphism, with larger females than males. However, sex determination (SD) of F. chinensis has not yet been elucidated. Clarification of the sex-determining system of F. chinensis could enrich our knowledge of the sex differentiation mechanism in crustaceans and facilitate the study of sex-controlling technologies. Here, we studied the sex-determining system of F. chinensis using the fixation index (F-ST) between the sexes to detect the genetic differentiation in resequencing data of multiple males and females. We located the candidate sex chromosome in the genome of F. chinensis and concluded the female heterogametic (ZW) SD system. We also assembled female-specific sequences, which could be used as molecular markers to identify the sex of F. chinensis. However, the differentiation of the F. chinensis Z and W chromosome is limited. RNA-seq data detected many genes with male-biased expression in the Z-specific region, which possibly could further intensify the divergency between the Z and W chromosomes.

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