Comparative analysis of the gut microbiota in bighead carp under different culture patterns
文献类型： 外文期刊
作者： Luo, Mingkun 1 ; An, Rui 2 ; Fu, Jianjun 1 ; Wan, Shunpeng 2 ; Zhu, Wenbin 1 ; Wang, Lanmei 1 ; Dong, Zaijie 1 ;
作者机构： 1.Minist Agr & Rural Affairs, Key Lab Freshwater Fisheries & Germplasm Resource, Freshwater Fisheries Res Ctr, Chinese Acad Fishery Sci, Wuxi, Jiangsu, Peoples R China
2.Nanjing Agr Univ, Wuxi Fisheries Coll, Wuxi, Jiangsu, Peoples R China
关键词： bighead carp; culture patterns; gut microbiota; Illumina sequencing; plankton
期刊名称：JOURNAL OF APPLIED MICROBIOLOGY （ 影响因子：3.772； 五年影响因子：3.963 ）
ISSN： 1364-5072
年卷期：
页码：
收录情况： SCI
摘要： Aims To investigate the phylogenetic composition and functional potential of bighead carp (Hypophthalmichthys nobilis) gut microbiome in two rearing patterns (bighead carp polycultured with Oreochromis niloticus in pond A and bighead carp polycultured with Cyprinus carpio in pond B, respectively), as well as the changes of plankton in the cultured water at four different time points. Methods and Results The intestinal contents were sequenced using Illumina HiSeq of bacterial 16S rRNA. Cyanophyta and Chlorophyta were the prevalent phytoplankton in the water, whereas Rotifers and Protozoa were the predominant zooplankton. In all, 779,563 quality-filtered sequences and 8870 amplicon sequence variants were obtained from 24 samples that numbered T1A1 to T4A3 and T1B1 to T4B3, resulting in 35 phyla, with Proteobacteria, Firmicutes, Fusobacteria and Cyanobacteria dominating. According to alpha diversity and beta diversity measurements, the bacterial communities were diverse, Chao1 richness and Pielou's evenness were significantly lower in the T2B and T4B groups. The gut bacterial communities of T1A, T1B, T2A and T2B groups differed from those of other samples, which formed distinctly clusters with principal coordinate analysis and non-metric multidimensional scaling analysis. PICRUSt2 predictive function analysis revealed that different culture patterns influenced the gut microbiota metabolic capacity. Conclusions Intestinal bacteria belonging to the phyla Proteobacteria, Firmicutes, Cyanobacteria and Fusobacteria are better suited to inhabit in various environments and perform specific functions. Furthermore, contact with the external environment and nutrient intake also stimulate the variety of intestinal microbiotas in polycultured bighead carp. Significance and Impact of the Study This is the first comprehensive, high-throughput investigation of gut microbiota diversity in bighead carp during various seasons in two polycultured patterns and provide preliminary information on gut microbiome composition and changes, laying a crucial foundation for future research on fish culture patterns in various environments.
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