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Microbial community...
Microbial community assembly and evolution in subseafloor sediment
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- Starnawski, Piotr (författare)
- Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, Microbiol Sect, DK-8000 Aarhus, Denmark.
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- Bataillon, Thomas (författare)
- Aarhus Univ, Bioinformat Res Ctr, DK-8000 Aarhus C, Denmark.
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- Ettema, Thijs J. G. (författare)
- Uppsala universitet,Molekylär evolution,Science for Life Laboratory, SciLifeLab
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- Jochum, Lara M. (författare)
- Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, Microbiol Sect, DK-8000 Aarhus, Denmark.
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- Schreiber, Lars (författare)
- Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, Microbiol Sect, DK-8000 Aarhus, Denmark.
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- Chen, Xihan (författare)
- Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, Microbiol Sect, DK-8000 Aarhus, Denmark.
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- Lever, Mark A. (författare)
- Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, Microbiol Sect, DK-8000 Aarhus, Denmark.
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- Polz, Martin F. (författare)
- MIT, Dept Civil & Environm Engn, Parsons Lab Environm Sci & Engn, Cambridge, MA 02139 USA.
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- Jorgensen, Bo B. (författare)
- Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, Microbiol Sect, DK-8000 Aarhus, Denmark.
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- Schramm, Andreas (författare)
- Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, Microbiol Sect, DK-8000 Aarhus, Denmark.;MIT, Dept Civil & Environm Engn, Parsons Lab Environm Sci & Engn, Cambridge, MA 02139 USA.
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- Kjeldsen, Kasper U. (författare)
- Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, Microbiol Sect, DK-8000 Aarhus, Denmark.
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Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, Microbiol Sect, DK-8000 Aarhus, Denmark Aarhus Univ, Bioinformat Res Ctr, DK-8000 Aarhus C, Denmark. (creator_code:org_t)
- 2017-02-27
- 2017
- Engelska.
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Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 114:11, s. 2940-2945
- Relaterad länk:
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https://www.pnas.org...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Bacterial and archaeal communities inhabiting the subsurface seabed live under strong energy limitation and have growth rates that are orders of magnitude slower than laboratory-grown cultures. It is not understood how subsurface microbial communities are assembled and whether populations undergo adaptive evolution or accumulate mutations as a result of impaired DNA repair under such energy-limited conditions. Here we use amplicon sequencing to explore changes of microbial communities during burial and isolation from the surface to the >5,000-y-old subsurface of marine sediment and identify a small core set of mostly uncultured bacteria and archaea that is present throughout the sediment column. These persisting populations constitute a small fraction of the entire community at the surface but become predominant in the subsurface. We followed patterns of genome diversity with depth in four dominant lineages of the persisting populations by mapping metagenomic sequence reads onto single-cell genomes. Nucleotide sequence diversity was uniformly low and did not change with age and depth of the sediment. Likewise, there was no detectable change inmutation rates and efficacy of selection. Our results indicate that subsurface microbial communities predominantly assemble by selective survival of taxa able to persist under extreme energy limitation.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- marine sediment
- bacteria
- metagenomics
- evolution
- single-cell genomics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Starnawski, Piot ...
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Bataillon, Thoma ...
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Ettema, Thijs J. ...
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Jochum, Lara M.
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Schreiber, Lars
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Chen, Xihan
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visa fler...
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Lever, Mark A.
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Polz, Martin F.
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Jorgensen, Bo B.
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Schramm, Andreas
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Kjeldsen, Kasper ...
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visa färre...
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- NATURVETENSKAP
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NATURVETENSKAP
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Proceedings of t ...
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Uppsala universitet