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Key Neuropeptides Regulating Molting in Pacific White Shrimp (Penaeus vannamei): Insights from Transcriptomic Analysis

文献类型： 外文期刊

作者： Li, Xianliang 1 ; Li, Yunjiao 2 ; Li, Zecheng 1 ; Chen, Hu 1 ;

作者机构： 1.Hainan Univ, Sanya Inst Breeding & Multiplicat, Hainan Aquaculture Breeding Engn Res Ctr, Sch Marine Biol & Fisheries,Key Lab Trop Hydrobiol, Haikou 570228, Peoples R China

2.Sichuan Acad Agr Sci, Fisheries Res Inst, Yibin 644000, Peoples R China

关键词： Penaeus vannamei; molting; neuropeptides; transcriptomic neuropeptides; transcriptomic

期刊名称：ANIMALS （ 影响因子：2.7； 五年影响因子：3.2 ）

ISSN： 2076-2615

年卷期： 2025 年 15 卷 4 期

页码：

收录情况： SCI

摘要： Molting is a vital physiological process essential for the growth and development of Penaeus vannamei, with significant implications for aquaculture productivity. This study aimed to identify neuropeptide-related genes involved in molting through transcriptomic analysis. RNA sequencing of pre-molt and post-molt samples revealed 1203 differentially expressed genes (DEGs). Functional enrichment analysis indicated that these genes play significant roles in cuticle formation and molting regulation. Among the DEGs, 243 were predicted to be neuropeptides based on the presence of signal peptides and the absence of transmembrane domains. Five key neuropeptide genes-PvCHH, PvMIH, PvEH I, PvCDA I, and PvCDA II-were identified as critical regulators of molting. Their role was further validated through RT-qPCR analysis, confirming their close association with the molting process. These genes were highlighted in this study as pivotal factors driving molting in P. vannamei. The neuropeptides identified in this research are anticipated to offer valuable insights into the regulation of molting. Additionally, their synthetic products hold promise for improving molting consistency in shrimp aquaculture.

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