De Novo Assembly, Characterization and Comparative Transcriptome Analysis of the Mature Male and Female Gonads in Acrossocheilus parallens
2025
Weiqian Liang | Lanyuan Liu | Dingxian Chen | Kaifeng Wang | Shengyue Lin | Weijian Chen | Sixun Li | Binhua Deng | Qiang Li | Chong Han
Acrossocheilus parallens has become an important commercial aquaculture species in southern China due to its high nutritional content and ornamental value. However, at present, there is very little research on its gonad development and reproductive regulation, which has restricted the development of its aquaculture industry. In this research, the gonadal transcriptome sequencing data of female and male A. parallens were first analyzed and compared. A total of 67,251 unigenes were successfully assembled and a total of 34,069 unigenes were annotated. After the comparative transcriptome analysis, a sum of 14,514 differentially expressed genes (DEGs) were identified between the male and female gonads, with 9111 having significantly high expression in the testes and 5403 having high expression in the ovaries. Additionally, 82 DEGs related to reproduction, gonad development and differentiation in the gonads were identified and the differential expression profiles of partial genes were further validated using real-time fluorescence quantitative PCR. These results provide basic data for further research on the functions of the genes and pathways related to sex differentiation and gonad development in A. parallens.
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