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TbasCO: trait-based comparative ‘omics identifies ecosystem-level and niche-differentiating adaptations of an engineered microbiome

Journal Article · · ISME Communications
 [1];  [2];  [3];  [3];  [4];  [4];  [2]
  1. Univ. of Wisconsin, Madison, WI (United States); University of Wisconsin—Madison Department of Bacteriology
  2. Wageningen Univ. (Netherlands); Netherlands Institute of Ecological Research, Wageningen (Netherlands)
  3. Univ. of Wisconsin, Madison, WI (United States)
  4. Netherlands Institute of Ecological Research, Wageningen (Netherlands); Leiden Univ. (Netherlands)
A grand challenge in microbial ecology is disentangling the traits of individual populations within complex communities. Various cultivation-independent approaches have been used to infer traits based on the presence of marker genes. However, marker genes are not linked to traits with complete fidelity, nor do they capture important attributes, such as the timing of gene expression or coordination among traits. To address this, we present an approach for assessing the trait landscape of microbial communities by statistically defining a trait attribute as a shared transcriptional pattern across multiple organisms. Leveraging the KEGG pathway database as a trait library and the Enhanced Biological Phosphorus Removal (EBPR) model microbial ecosystem, we demonstrate that a majority (65%) of traits present in 10 or more genomes have niche-differentiating expression attributes. For example, while many genomes containing high-affinity phosphorus transporter pstABCS display a canonical attribute (e.g. up-regulation under phosphorus starvation), we identified another attribute shared by many genomes where transcription was highest under high phosphorus conditions. Taken together, we provide a novel framework for unravelling the functional dynamics of uncultivated microorganisms by assigning trait-attributes through genome-resolved time-series metatranscriptomics.
Research Organization:
Great Lakes Bioenergy Research Center (GLBRC), Madison, WI (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0018409
OSTI ID:
1922512
Journal Information:
ISME Communications, Journal Name: ISME Communications Journal Issue: 1 Vol. 2; ISSN 2730-6151
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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