Patterns of Bacterial Community Composition and Diversity Following the Embryonic Development Stages of Macrobrachium rosenbergii
文献类型： 外文期刊
作者： Liu, Bo 1 ; Zhou, Qunlan 2 ; Sun, Cunxin 2 ; Song, Changyou 1 ; Zhang, Huimin 1 ; Yang, Zhenfei 1 ; Shan, Fan 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, Key Lab Freshwater Fisheries & Germplasm Resource, Minist Agr, Wuxi 214081, Jiangsu, Peoples R China
3.Nanjing Agr Univ, Wuxi Fisheries Coll, FFRC CAFS, 9 Shanshui East Rd, Wuxi 214081, Jiangsu, Peoples R China
关键词： M. rosenbergii; Embryo; Water environment; Microorganisms; Bacterial diversity
期刊名称：AQUACULTURE REPORTS （ 影响因子：3.216； 五年影响因子：3.812 ）
ISSN： 2352-5134
年卷期： 2020 年 17 卷
页码：
收录情况： SCI
摘要： During the evolution of aquatic animals, co-evolution between host and microbes has been overlooked. Previous studies have shown that microbes were present in the fertilized egg of fish, but compared with fish, little in-formation is available for crustaceans. High-throughput Illumina Miseq DNA sequencing of the V3-V4 domain of the 16S rRNA gene was used to assess the microbial community composition during different stages of em-bryonic development in Macrobrachium rosenbergii : fertilized egg stage (OM1), cleavage stage (OM2), blastula stage (OM3), gastrula stage (OM4), egg nauplius stage (OM5), egg metanauplius stage (OM6), protozoea stage (OM7) and zoea stage (OM8). Water samples (WMZ) were also assessed. The results showed that Proteobacteria (82.92%), Bacteroidetes (9.27%), and Actinobacteria (4.49%) were the predominant phylum in the M. rosenbergii embryo. At the genus level, the microbial composition was constantly changing during embryonic development. We concluded that OM3 and OM4 might be the critical stage for transformation of the microbial composition in the M. rosenbergii embryo. The main factor responsible for microbial colonization in the embryo was primarily selective pressure exerted by the shrimp, while the microbial community in the water environment had a lower impact. This study describes bacterial communities in different stages of embryonic development in M. ro-senbergii , and the effects of the surrounding environment on microbial colonization. These findings provide valuable information for further studies examining the formation of early intestinal flora in crustaceans.
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