Deep-sea Hydrothermal Vent Metagenome-assembled Genomes Provide Insight into the Phylum Nanoarchaeota
Sponsor
National Aeronautics and Space Administration. Grant Number: NNX16AJ66G. US‐National Science Foundation. Grant Numbers: OCE1235432, OCE1558795, OCE0728391, DEB1134877. Department of Energy Joint Genome Institute
Published In
Environmental Microbiology Reports
Document Type
Citation
Publication Date
4-1-2019
Abstract
Ectosymbiotic Nanoarchaeota live on the surface of diverse archaeal hosts. Despite being broadly distributed in global geothermal systems, only three Nanoarchaeota have been successfully co-cultivated with their hosts, and until now no nanoarchaeotal cultures or genomes have been described from deep-sea hydrothermal vents. We recovered three nanoarchaeotal metagenome-assembled genomes (MAGs) from deep-sea hydrothermal vent sites at the Eastern Lau Spreading Center (M10-121), Guaymas Basin (Gua-46) and the Mid-Cayman Rise (MC-1). Based on average amino acid identity analysis, M10-121 is a novel species in the candidate genus Nanoclepta, while the other two MAGs represent novel genera in the Nanoarchaeota. Like previously sequenced Nanoarchaeota, each MAG encodes at least one split protein-coding gene. The MAGs also contain a mosaic of key nanoarchaeotal features, including CRISPR repeat regions and marker genes for gluconeogenesis and archaeal flagella. MC-1 also encodes the pentose bisphosphate pathway, which may allow the nanoarchaeote to bypass several steps in glycolysis and produce ATP.
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DOI
10.1111/1758-2229.12740
Persistent Identifier
https://archives.pdx.edu/ds/psu/28354
Citation Details
St John, E., Flores, G. E., Meneghin, J., & Reysenbach, A.-L. (2019). Deep-sea hydrothermal vent metagenome-assembled genomes provide insight into the phylum Nanoarchaeota. Environmental Microbiology Reports, 11(2), 262–270. https://doi.org/10.1111/1758-2229.12740
Description
© 2019 Society for Applied Microbiology and John Wiley & Sons Ltd