The Lifestyle-Dependent Microbial Interactions Vary Between Upstream and Downstream of the Three Gorges Dam
文献类型：期刊论文
| 作者 | Wang, Shang ; Hou, Weiguo; Jiang, Hongchen; Dong, Hailiang; Huang, Liuqin; Chen, Shu; Wang, Bin; Chen, Yongcan; Lin, Binliang; Deng, Ye
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| 刊名 | FRONTIERS IN ECOLOGY AND EVOLUTION
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| 出版日期 | 2021 |
| 卷号 | 9期号:0页码:624476 |
| 关键词 | |
| 英文摘要 | Dams represent the most significant anthropogenic disturbance to global rivers. Previous studies have shown that free-living and particle-attached microbes exhibited differentially in river and reservoir ecosystems. However, little is known about the dam's effect on their co-occurrence patterns. Here, a random matrix theory (RMT)-based network approach was used to construct microbial ecological networks for free-living and particle-attached communities in the immediate vicinity of the Three Gorges Dam (TGD), based on a high-throughput sequencing of 16S rRNA gene. Microbial distribution pattern showed that differences caused by lifestyle (free-living vs. particle-attached) were greater than those caused by geographic position (upstream vs. downstream of the TGD). Network analysis revealed higher connectivity and a lower number of modules in the overall downstream networks. Furthermore, considering the lifestyle, the network structures and properties for free-living and particle-attached microbes were different between upstream and downstream of the dam. Specifically, free-living communities located upstream of the dam exhibited a more complex co-occurrence pattern than the particle-attached communities, whereas the opposite was true for those located downstream of the dam. This variation indicated a strong impact of the dam on microbial interactions for microbes with similar lifestyle in the vicinity of the dam. We identified 112 persistent operational taxonomic unit (OTU)-level species that stably coexisted regardless of lifestyle and geographic positions. These persistent species occupied 21.33-25.57% of the total nodes in each network, and together with their first neighbors, they contributed more than 50% of the nodes and edges belonging to each network. Furthermore, we found that taxonomic affiliations for central nodes (with high degree) varied in these persistent species sub-networks. Collectively, our findings expand the current understanding of the dam's effect on species interaction variation patterns for free-living and particle-attached communities in the vicinity of the dam, which are more complex than traditional alpha and beta microbial diversity. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46959]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, CAS Key Lab Environm Biotechnol, Beijing, Peoples R China 2.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing, Peoples R China 3.China Univ Geosci, Sch Ocean Sci, Beijing, Peoples R China 4.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan, Peoples R China 5.Southwest Univ Sci & Technol, Sch Environm & Resource, Mianyang, Sichuan, Peoples R China 6.Tsinghua Univ, Dept Hydraul Engn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shang,Hou, Weiguo,Jiang, Hongchen,et al. The Lifestyle-Dependent Microbial Interactions Vary Between Upstream and Downstream of the Three Gorges Dam[J]. FRONTIERS IN ECOLOGY AND EVOLUTION,2021,9(0):624476. |
| APA | Wang, Shang.,Hou, Weiguo.,Jiang, Hongchen.,Dong, Hailiang.,Huang, Liuqin.,...&Deng, Ye.(2021).The Lifestyle-Dependent Microbial Interactions Vary Between Upstream and Downstream of the Three Gorges Dam.FRONTIERS IN ECOLOGY AND EVOLUTION,9(0),624476. |
| MLA | Wang, Shang,et al."The Lifestyle-Dependent Microbial Interactions Vary Between Upstream and Downstream of the Three Gorges Dam".FRONTIERS IN ECOLOGY AND EVOLUTION 9.0(2021):624476. |
入库方式： OAI收割
来源：生态环境研究中心
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