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Maternal and environmental microbes dominate offspring microbial colonization in the giant freshwater prawn Macrobrachium rosenbergii

文献类型： 外文期刊

作者： Liu, Bo 1 ; Song, Changyou 2 ; Gao, Qiang 3 ; Liu, Bo 1 ; Zhou, Qunlan 1 ; Sun, Cunxin 2 ; Zhang, Huimin 1 ; Liu, Mingyan 1 ;

作者机构： 1.Nanjing Agr Univ, Wuxi Fisheries Coll, Wuxi 214081, Jiangsu, Peoples R China

2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Minist Agr & Rural Affairs, Key Lab Freshwater Fisheries & Germplasm Resource, Wuxi 214081, Jiangsu, Peoples R China

3.Zhejiang Inst Freshwater Fishery, Huzhou 313001, Peoples R China

关键词： Microbiome; Development stages; Maternal sources; Environmental sources; Macrobrachium rosenbergii

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN： 0048-9697

年卷期： 2021 年 790 卷

页码：

收录情况： SCI

摘要： Microbial colonization is vital for physiological equilibrium in animals. However, the impact of maternal and environmental microbes on microbial succession in the early developmental stages of Macrobrachium rosenbergii remains elusive. In this study, the effects of maternal and environmental microbes on the embryonic and larval microbiota of M. rosenbergii were evaluated by high-throughput sequencing. The results showed that Proteobacteria and Firmicutes were the dominant phyla in the intestine, gonads, and hepatopancreases of maternal prawn. In addition, Actinobacteria was dominant in the intestine while Actinobacteria, Bacteroidetes, and Acidobacteria were dominant in gonads of maternal prawn. During the embryonic stages, Proteobacteria, Actinobacteria, and Bacteroidetes became the dominant phyla. In post-larval stages, Proteobacteria, Actinobacteria, Firmicutes, and Bacteroidetes tended to dominate. In the water, Proteobacteria, Actinobacteria, and Bacteroidetes were the dominant phyla at 7,14, and 21 dph water. Maternal microbes prominently impacted the microbial composition during the embryonic stages. Specifically, microbial colonization during embryonic stages was directly related to the maternal hepatopancreas according to source-tracking models. When the post-larvae developed to 7 days, the high contribution to the larval microbiota mimicked the environment. These results indicated that microbial colonization in embryonic and post-larval stages was attributed to the maternal and environmental microbe community, respectively. This study provides a theoretical basis for microbial community manipulation to promote prawn growth and physiological health in aquaculture. (c) 2021 Elsevier B.V. All rights reserved.

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