期刊
SCIENCE
卷 335, 期 6068, 页码 587-590出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1212665
关键词
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资金
- Gordon and Betty Moore Foundation
- NSF [OCE-0723866]
- Directorate For Geosciences
- Division Of Ocean Sciences [0910624] Funding Source: National Science Foundation
- Division Of Ocean Sciences
- Directorate For Geosciences [1128883] Funding Source: National Science Foundation
Ecosystems are shaped by complex communities of mostly unculturable microbes. Metagenomes provide a fragmented view of such communities, but the ecosystem functions of major groups of organisms remain mysterious. To better characterize members of these communities, we developed methods to reconstruct genomes directly from mate-paired short-read metagenomes. We closed a genome representing the as-yet uncultured marine group II Euryarchaeota, assembled de novo from 1.7% of a metagenome sequenced from surface seawater. The genome describes a motile, photo-heterotrophic cell focused on degradation of protein and lipids and clarifies the origin of proteorhodopsin. It also demonstrates that high-coverage mate-paired sequence can overcome assembly difficulties caused by interstrain variation in complex microbial communities, enabling inference of ecosystem functions for uncultured members.
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