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Comparison of the gut microbiota composition between asymptomatic and diseased Epinephelus moara female x Epinephelus lanceolatus male with nervous necrosis virus infection

文献类型： 外文期刊

作者： Wang, Linna 1 ; Tian, Yongsheng 1 ; Li, Zhentong 1 ; Li, Ziqi 1 ; Chen, Shuai 1 ; Li, Linlin 1 ; Li, Wensheng 5 ; Wang, Q 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China

2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao, Peoples R China

3.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai, Peoples R China

4.Chinese Acad Agr Sci, Beijing, Peoples R China

5.Mingbo Aquat Co Ltd, Laizhou, Peoples R China

关键词： 16S rRNA; asymptomatic; gut microbiota; nervous necrosis virus; yunlong grouper

期刊名称：AQUACULTURE RESEARCH （ 影响因子：2.082； 五年影响因子：2.415 ）

ISSN： 1355-557X

年卷期：

页码：

收录情况： SCI

摘要： Yunlong grouper (Epinephelus moara female x Epinephelus lanceolatus male) is a new hybrid grouper with high economic value because it has shown some superiority in terms of growth, temperature tolerance, deformity resistance and some nutritional indicators compared with its parents. Currently, the aquaculture industry of grouper is plagued by viral diseases, and there is still no effective control method. Gut microbiomes have a significant impact on the digestion, immunity, metabolism, health and behaviours. In this study, 16S rRNA gene sequencing was performed to characterize the gut microbiota of yunlong grouper, and the differences in community composition between the asymptomatic and diseased fish naturally infected with nervous necrosis virus (NNV) were compared. A total of 3262 OTUs with >= 97% sequence similarity of 31 bacterial phyla were identified. In all grouper samples, the most abundant phylum was Proteobacteria and the most abundant genus was Blastopirellula, the predicted functions in gut bacteria were mainly involved with metabolism. There were no significant differences between two groups of yunlong grouper in alpha-diversity analysis. Specific bacterial taxa difference for each group from the phyla to the genus level was identified using LEfSe analysis. This is the first report of comparison of the gut microbiota between asymptomatic and diseased yunlong grouper under NNV infection. These findings provide an understanding about the interaction between intestinal microbiota and host under NNV infection, and provide targets for future probiotics screening.

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