Genomic and proteomic characterization of ``CandidatusNitrosopelagicus brevis'': An ammonia-oxidizing archaeon from the open ocean
Abstract
Thaumarchaeota are among the most abundant microbial cells in the ocean, but to date, complete genome sequences for marine Thaumarchaeota are lacking. Here, we report the 1.23-Mbp genome of the pelagic ammonia-oxidizing thaumarchaeon "Candidatus Nitrosopelagicus brevis" str. CN25. We present the first proteomic data, to our knowledge, from this phylum, which show a high proportion of proteins translated in oligotrophic conditions. Metagenomic fragment recruitment using data from the open ocean indicate the ubiquitous presence of Ca. N. brevis-like sequences in the surface ocean and suggest Ca. N. brevis as a model system for understanding the ecology and evolution of pelagic marine Thaumarchaeota.
- Publication:
-
Proceedings of the National Academy of Science
- Pub Date:
- January 2015
- DOI:
- 10.1073/pnas.1416223112
- Bibcode:
- 2015PNAS..112.1173S