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Identification of Important Genes Involved in the Sex-Differentiation Mechanism of Oriental River Prawn, Macrobrachium nipponense, During the Gonad Differentiation and Development Period

文献类型： 外文期刊

作者： Jin, Shubo 1 ; Zhang, Wenyi 1 ; Xiong, Yiwei 1 ; Jiang, Sufei 1 ; Qiao, Hui 1 ; Gong, Yongsheng 1 ; Wu, Yan 1 ; Fu, Hongtuo 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Freshwater Fisheries & Germplasm Resource, Minist Agr, Wuxi, Jiangsu, Peoples R China

关键词： Macrobrachium nipponense; gonad differentiation and development; reproduction-related genes; regulation of gonad development; transcriptome profiling analysis

期刊名称：FRONTIERS IN GENETICS （ 影响因子：4.772； 五年影响因子：4.933 ）

ISSN：

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Identification of important genes, involved in the gonad differentiation and development, plays essential roles in the establishment of the artificial technique to regulate the process of testis development in M. nipponense. In this study, we aimed to determine the sensitive period of gonad differentiation and development through hematoxylin and eosin (HE) staining. The important genes involved in the gonad differentiation and development of M. nipponense were then identified through transcriptome profiling analysis during the sensitive period of gonad differentiation and development. HE staining analysis revealed that the sensitive period of gonad differentiation and development was from the post-larval developmental stages 5 (PL5) to PL25, which was dramatically faster than was for the other identified aquatic animals. The transcriptome profiling analysis predicted that phagosome, lysosome, oxidative phosphorylation, and glycolysis/gluconeogenesis play essential roles in the mechanism of gonad differentiation and development in M. nipponense. A total of 29 genes were further identified as the candidate genes, involved in the process of gonad differentiation and development in M. nipponense, based on the gene annotation and gene expression pattern. The qPCR analysis of Mn-JHEH, Mn-DHP, Mn-ALY, and Mn-SMA6 during the whole developmental process revealed that all of these four genes showed high expression levels during the sensitive period of gonad differentiation and development in M. nipponense. Mn-JHEH, Mn-DHP, and Mn-ALY showed higher expressions at PL25F than at PL25M, while Mn-SMA6 showed a higher expression at PL25M. The RNA interference (RNAi) analysis was further used to investigate the potential functions of SMA6 in male sexual development of M. nipponense. The RNAi analysis revealed that SMA6 positively regulated the testis development in M. nipponense by affecting the expression of Mn-IAG. This study provided valuable evidences for the establishment of the technique to regulate the process of gonad development in M. nipponense.

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