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A quantitative framework reveals ecological drivers of grassland microbial community assembly in response to warming

Nature communications, 2020-09, Vol.11 (1), p.4717-12, Article 4717 [Peer Reviewed Journal]

The Author(s) 2020 ;ISSN: 2041-1723 ;EISSN: 2041-1723 ;DOI: 10.1038/s41467-020-18560-z ;PMID: 32948774

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  • Title:
    A quantitative framework reveals ecological drivers of grassland microbial community assembly in response to warming
  • Author: Ning, Daliang ; Yuan, Mengting ; Wu, Linwei ; Zhang, Ya ; Guo, Xue ; Zhou, Xishu ; Yang, Yunfeng ; Arkin, Adam P ; Firestone, Mary K ; Zhou, Jizhong
  • Subjects: Animals ; Bacteria - classification ; BASIC BIOLOGICAL SCIENCES ; Biodiversity ; community ecology ; Droughts ; Ecology ; Global Warming ; Grassland ; grassland ecology ; Microbial communities ; microbial ecology ; Microbiota ; Models, Biological ; Phylogeny ; Sensitivity and Specificity
  • Is Part Of: Nature communications, 2020-09, Vol.11 (1), p.4717-12, Article 4717
  • Description: Unraveling the drivers controlling community assembly is a central issue in ecology. Although it is generally accepted that selection, dispersal, diversification and drift are major community assembly processes, defining their relative importance is very challenging. Here, we present a framework to quantitatively infer community assembly mechanisms by phylogenetic bin-based null model analysis (iCAMP). iCAMP shows high accuracy (0.93-0.99), precision (0.80-0.94), sensitivity (0.82-0.94), and specificity (0.95-0.98) on simulated communities, which are 10-160% higher than those from the entire community-based approach. Application of iCAMP to grassland microbial communities in response to experimental warming reveals dominant roles of homogeneous selection (38%) and 'drift' (59%). Interestingly, warming decreases 'drift' over time, and enhances homogeneous selection which is primarily imposed on Bacillales. In addition, homogeneous selection has higher correlations with drought and plant productivity under warming than control. iCAMP provides an effective and robust tool to quantify microbial assembly processes, and should also be useful for plant and animal ecology.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2041-1723
    EISSN: 2041-1723
    DOI: 10.1038/s41467-020-18560-z
    PMID: 32948774
  • Source: MEDLINE
    PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
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