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Temporal and Spatial Signatures of Scylla paramamosain Transcriptome Reveal Mechanistic Insights into Endogenous Ovarian Maturation under Risk of Starvation

文献类型： 外文期刊

作者： Fu, Yin 1 ; Zhang, Fengying 1 ; Wang, Wei 1 ; Xu, Jiayuan 3 ; Zhao, Ming 1 ; Ma, Chunyan 1 ; Cheng, Yongxu 2 ; Chen, Wei 1 ; Su, Zhixing 3 ; Lv, Xiaokang 3 ; Liu, Zhiqiang 1 ; Ma, Keyi 1 ; Ma, Lingbo 1 ;

作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Key Lab East China Sea Fishery Resources Exploitat, Minist Agr & Rural Affairs, Shanghai 200090, Peoples R China

2.Shanghai Ocean Univ, Ctr Res Environm Ecol & Fish Nutr CREEFFN, Minist Agr, Shanghai 201306, Peoples R China

3.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Expt Base, Ningbo 315604, Peoples R China

关键词： Scylla paramamosain; ovarian development; starvation; autophagy; gene expression; biochemical analysis

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 1661-6596

年卷期： 2024 年 25 卷 2 期

页码：

收录情况： SCI

摘要： Variability in food availability leads to condition-dependent investments in reproduction. This study is aimed at understanding the metabolic response and regulatory mechanism of female Scylla paramamosain in response to starvation in a temporal- and tissue-specific manner. The mud crabs were starved for 7 (control), 14, 28, and 40 days for histological and biochemical analysis in the hepatopancreas, ovary, and serum, as well as for RNA sequencing on the hepatopancreas and ovary. We further highlighted candidate gene modules highly linked to physiological traits. Collectively, our observations suggested that starvation triggered endogenous ovarian maturation at the expense of hepatopancreas mass, with both metabolic adjustments to optimize energy and fatty acid supply from hepatopancreas to ovary in the early phase, followed by the activation of autophagy-related pathways in both organs over prolonged starvation. These specific adaptive responses might be considered efficient strategies to stimulate ovarian maturation of Scylla paramamosain under fasting stress, which improves the nutritional value of female mud crabs and other economically important crustaceans.

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