Biogeographic pattern of bacterioplanktonic community and potential function in the Yangtze River: Roles of abundant and rare taxa.
Biogeographic pattern of bacterioplanktonic community and potential function in the Yangtze River: Roles of abundant and rare taxa.
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长江浮游细菌群落的生物地理格局及其潜在功能：丰富和稀有类群的作用。
DOI：
10.1016/j.scitotenv.2020.141335
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发表时间：
2020-07
影响因子：
9.8
通讯作者：
Hong Yiguo
中科院分区：
文献类型：
--
作者：
Wang Yu;Ye Fei;Wu Shengjun;Wu Jiapeng;Yan Jia;Xu Kaiqin;Hong Yiguo
浮游细菌群落是河流生态系统的重要组成部分，由少量丰富类群(AT)和许多稀有类群(RT)组成。然而，大型河流中浮游细菌的生物地理格局以及AT和RT在群落结构和功能组成中的作用仍然不确定。在这里，我们使用世界第三大河长江作为模型系统。利用Tax4Fun的高通量测序和生物信息学工具，对浮游细菌分类和预测功能群落的地理格局进行了研究，探讨了丰富亚群落和稀有亚群落在群落结构中的相对重要性。结果表明，长江上游、中游和下游浮游细菌群落具有明显的空间分异。此外，三峡大坝对上游的浮游细菌产生了影响，上游的浮游细菌群落与鄱阳湖的群落相对较近。丰富度和稀有度的亚群落均表现出沿河流的空间变异，与浮游细菌总群落的空间变化趋势相似。群落多样性以稀有亚群落为主，占总序列的23.6%，占总OTUS的94.2%。稀有亚群落对总群落空间变异的贡献率为56.8%，丰富亚群落为16.3%。此外，非RT物种与RT的相互作用多于与其自身的相互作用，所有33个Keystone物种都属于RT。因此，RT对于社区的构建和组装至关重要。相比之下，预测的功能群落没有观察到明显的空间效应。丰富性和稀有性亚群落的预测功能与整个群落的预测功能是一致的，尽管它们的群落组成截然不同。综上所述，稀有亚群落对群落结构和聚集度有显著影响，在预测长江流域“种子库”功能中发挥着重要作用。
Bacterioplanktonic communities, consisting of a few abundant taxa (AT) and many rare taxa (RT), are essential component of riverine ecosystems. Nonetheless, the biogeographic patterns of bacterioplankton and roles of AT and RT in community structuring and functional composition remain uncertain in large rivers. Here, we employ the Yangtze River, which is the third-longest river in the world, as model system. By using high-throughput sequencing and bioinformatics tool of Tax4Fun, the geographical patterns of bacterioplanktonic taxonomic and predicted functional communities are investigated, and the relative importance of abundant and rare subcommunities in community structuring are explored. Results showed a clear spatial variation that the bacterioplanktonic communities of upper, middle and lower reaches of the river are significantly different from each other. Besides, the Three Gorges Dam exhibited impact on the bacterioplankton of upper reach whose community is relatively closer to that of the Poyang Lake. Both the abundant and rare subcommunities showed spatial variation along the river, which is similar to the total bacterioplanktonic community. The rare subcommunity comprised a majority of community diversity with 23.6% of the total sequences and 94.2% of the total OTUs. The rare subcommunity contributes a major part (56.8%) versus abundant subcommunity (16.3%) of the spatial variation of the total community. In addition, the non-RT exhibits more interactions with RT than with themselves, and all of the 33 keystone species are belonged to RT. Hence, the RT is critical for community structuring and assembling. By contrast, no obvious spatial effect was observed for the predicted functional community. The predicted functions of abundant and rare subcommunities are consistent with that of total community, despite their contrasting community composition. In summary, the rare subcommunity show significantly impact on the community structure and assembling, and play an important role in predicted function as ‘seed bank’ in the Yangtze River.
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影响因子：
6.4
作者：
Shade A;Jones SE;Caporaso JG;Handelsman J;Knight R;Fierer N;Gilbert JA
通讯作者：
Gilbert JA
DOI：
10.1038/ismej.2010.75
发表时间：
2010-12
期刊：
The ISME journal
影响因子：
--
作者：
Pester M;Bittner N;Deevong P;Wagner M;Loy A
通讯作者：
Loy A
草甘膦形成甲藻相关细菌群落，同时作为唯一磷源支持藻类生长
影响因子：
5.2
作者：
Wang C;Lin X;Li L;Lin L;Lin S
通讯作者：
Lin S
影响因子：
5.1
作者：
Cottrell, MT;Waidner, LA;Kirchman, DL
通讯作者：
Kirchman, DL
影响因子：
11
作者：
Lee, Charles K.;Barbier, Beatrice A.;Cary, Stephen Craig
通讯作者：
Cary, Stephen Craig