文献类型：期刊文献

英文题名：Whole Transcriptome Analysis Reveals the Global Molecular Responses of mRNAs, lncRNAs, miRNAs, circRNAs, and Their ceRNA Networks to Salinity Stress in Hong Kong Oysters, Crassostrea hongkongensis

作者：Ibrahim, Salifu[1]; Yang, Chuangye[2,3]; Yue, Chenyang[1]; Song, Xinyu[1]; Deng, Yuewen[2,3]; Li, Qi[4]; Lü, Wengang[1]

机构：[1] Guangdong Marine Invertebrates Science and Technology Innovation Center, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China; [2] Pearl Breeding and Processing Engineering Technology Research Centre of Guangdong Province, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China; [3] Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China; [4] Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China

年份：2023

卷号：25

期号：4

起止页码：624

外文期刊名：Marine Biotechnology

收录：EI(收录号：20233014451254)、Scopus(收录号：2-s2.0-85165934274)

语种：英文

外文关键词：Amino acids - Metabolism - Molluscs - Shellfish

外文摘要：The Hong Kong oyster, Crassostrea hongkongensis, is an estuarine bivalve with remarkable commercial value in South China, and the increase of salinity in estuaries during the dry season has posed a major threat to the oyster farming. To explore the global transcriptional response to salinity stress, a whole-transcriptome analysis was performed with the gills of oysters in 6‰, 18‰, and 30‰ filtered seawater. Overall, 2243, 194, 371, and 167 differentially expressed mRNAs (DEmRNAs), differentially expressed long non-coding RNAs (DElncRNAs), differentially expressed circular RNAs (DEcircRNAs), and differentially expressed microRNAs (DEmiRNAs) were identified, respectively. Based on GO enrichment and KEGG pathway analysis, these important DEmRNAs, DElncRNAs, DEcircRNAs, and DEmiRNAs were predicted to be mainly involved in amino acids metabolism, microtubule movement, and immune defense. This demonstrated the complexity of dynamic transcriptomic profiles of C. hongkongensis in response to salinity fluctuation. The regulatory relationships of DEmiRNAs-DEmRNAs, DElncRNAs-DEmiRNAs, and DEcircRNAs-DEmiRNAs were also predicted, and finally, a circRNA-associated competing endogenous RNA (ceRNA) network was constructed, consisting of six DEcircRNAs, eight DEmiRNAs, and five DEmRNAs. The key roles of taurine and hypotaurine metabolism and phenylalanine metabolism were highlighted in this ceRNA network, which was consistent with the major contribution of free amino acids to intracellular osmolality and cell volume regulation. Collectively, this study provides comprehensive data, contributing to the exploration of coding and non-coding RNAs in C. hongkongensis salinity response. The results would benefit the understanding of the response mechanism of bivalves against salinity fluctuation, and provide clues for genetic improvement of C. hongkongensis with hyper-salinity tolerance. ? 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.