Multi-omics study of sex in greater amberjack (Seriola dumerili): Identifying related genes, analyzing sex-biased expression, and developing sex-specific markers
Duo Li , Leilei Zeng , Weiwei Zhang , Qinghua Wang , Jinhui Wu , Chunhua Zhu , Zining Meng
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引用次数: 0
Abstract
The greater amberjack (Seriola dumerili) is a valuable marine fish with significant breeding potential, but does not exhibit clear sexual dimorphism in morphology. Sex research and the development of sex identification technology are important for breeding purposes. Through genome-wide association analysis (GWAS), we identified one significant sex-related SNP and 18 candidate sex-related SNPs, then obtained one significant sex-related gene (hsd17β1) and 20 candidate sex-related genes (hmbox1, ahcyl1, pdzd2, etc.). Key sex-biased genes (sox2, dmrt2, hsd17β3, rnf145, foxo3, etc.) were identified in mature gonads by transcriptome analysis. These genes are important in greater amberjack sex determination and gonad development. In addition, we developed classical PCR and kompetitive allele-specific PCR (KASP) primers to identify the sex of greater amberjack, with an accuracy of 94.87 % and 100 %, respectively. The sex-specific markers can effectively determine the gender of greater amberjack and evaluate the sex ratio and reproductive potential of the breeding population.
期刊介绍:
Comparative Biochemistry & Physiology (CBP) publishes papers in comparative, environmental and evolutionary physiology.
Part D: Genomics and Proteomics (CBPD), focuses on “omics” approaches to physiology, including comparative and functional genomics, metagenomics, transcriptomics, proteomics, metabolomics, and lipidomics. Most studies employ “omics” and/or system biology to test specific hypotheses about molecular and biochemical mechanisms underlying physiological responses to the environment. We encourage papers that address fundamental questions in comparative physiology and biochemistry rather than studies with a focus that is purely technical, methodological or descriptive in nature.