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  Boolean analysis reveals systematic interactions among low-abundance species in the human gut microbiome

Claussen, J. C., Skiecevičienė, J., Wang, J., Rausch, P., Karlsen, T. H., Lieb, W., et al. (2017). Boolean analysis reveals systematic interactions among low-abundance species in the human gut microbiome. PLoS Computational Biology, 13(6): e1005361, pp. 1-21. doi:10.1371/journal.pcbi.1005361.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-87F7-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-87F8-9
Genre: Journal Article

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 Creators:
Claussen, Jens Christian, Author
Skiecevičienė, Jurgita, Author
Wang, Jun, Author
Rausch, Philipp1, Author              
Karlsen, Tom H., Author
Lieb, Wolfgang, Author
Baines, John F.1, Author              
Franke, Andre, Author
Hütt, Marc-Thorsten, Author
Affiliations:
1Guest Group Evolutionary Genomics, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445638              

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 Abstract: Author summary Over the last years the composition of microbial communities in the human gut, the gut microbiome, has gained prominence in clinical research. Providing an estimate of the microbial interaction network from compositional data is an important prerequisite for clinical interpretation and for a better theoretical understanding of such microbial communities. Many studies have focused on the dominant interactions of species that are highly abundant such as, on the phyla level, Bacteriodetes and Firmicutes. Using binarized abundance vectors (recording only the presence and absence of microbial species) we show that the low-abundance segment of the microbiome also contains a large number of systematic interactions. For low-abundant species, our inference method evaluates the transformation of pairs of such vectors ‘binary co-abundance’ under Boolean operations. First we calibrate our new method using simulated data. Then we apply it to novel microbiome data from a human population study. The method reveals a large number of significant positive interactions and several significant negative interactions among low-abundance microbial species. It can be argued that important inter-individual differences and adaptations to changes in environmental conditions rather occur on the level of the low-abundance species than in the few main highly abundant species. This hypothesis could explain the broad distribution of abundances in microbiome compositions.

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Language(s): eng - English
 Dates: 2016-05-242017-01-052017-06-222017-07
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1371/journal.pcbi.1005361
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Title: PLoS Computational Biology
Source Genre: Journal
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Publ. Info: San Francisco, CA : Public Library of Science
Pages: - Volume / Issue: 13 (6) Sequence Number: e1005361 Start / End Page: 1 - 21 Identifier: ISSN: 1553-734X
CoNE: /journals/resource/1000000000017180_1