Comparative Transcriptome Analysis Reveals Sexually Dimorphic Gene Expression in the Gonads of Brachymystax tsinlingensis Li
文献类型： 外文期刊
作者： Huang, Ling 1 ; Ye, Huan 1 ; Yue, Huamei 1 ; Leng, Xiaoqian 1 ; Ruan, Rui 1 ; Du, Hao 1 ; Li, Chuangju 1 ; Wu, Jinming 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab Freshwater Biodivers Conservat, Yangtze River Fisheries Res Inst, Minist Agr & Rural Affairs, Wuhan 430223, Peoples R China
关键词： Brachymystax tsinlingensis Li; testis and ovary; transcriptome analysis; sex-biased genes
期刊名称：ANIMALS （ 影响因子：3.0； 五年影响因子：3.2 ）
ISSN： 2076-2615
年卷期： 2023 年 13 卷 23 期
页码：
收录情况： SCI
摘要： Brachymystax tsinlingensis Li is an endangered cold-water salmonid fish native to China. This study aimed to identify sex-related genes and biological pathways via gonadal transcriptome sequencing of B. tsinlingensis Li. A total of 167,904 unigenes were identified with an average length of 836 bp and an N50 of 1452 bp, of which 84,977 (50.61%) unigenes were successfully annotated in six major databases. Comparative transcriptome analysis identified 22,864 differentially expressed genes (DEGs), of which 17,231 were up-regulated (male-biased genes, mDEGs) and 5633 were down-regulated (female-biased genes, fDEGs). Several DEGs associated with gonadal development were found through Gene Ontology enrichment analysis, such as ccnb1, zp3, bmp15, dmrt1, and psmc3ip. Signaling pathways related to gonadal development were found to be enriched through analysis using the Kyoto Encyclopedia of Genes and Genomes Pathway database, such as genes involves in base excision repair, the notch signaling pathway, neuroactive ligand-receptor interaction, the VEGF signaling pathway, and the estrogen signaling pathway. In addition, mRNA expression levels of 19 DEGs were determined to validate the reliability of the transcriptomic data by quantitative real-time polymerase chain reaction. These results revealed genes and signaling pathways potentially involved in gonadal development in B. tsinlingensis Li and provided basic molecular data for future research on reproductive regulation and breeding of B. tsinlingensis Li.
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