Draft genome sequence of an ammonia-oxidizing archaeon &quotCandidatus Nitrosopumilus koreensis AR1 from marine sediment

Abstract

Ammonia-oxidizing archaea (AOA) are ubiquitous in various marine environments, and play important roles in the global nitrogen and carbon cycles. We herein present a high-quality draft genome sequence of an ammonia-oxidizing archaeon, Candidatus Nitrosopumilus koreensis AR1, that was found to dominate an ammonia-oxidizing enrichment culture in marine sediment off Svalbard, the Arctic Circle. Despite a significant number of non-overlapping genes (ca. 30%), similarities of this strain to Ca. Nitrosopumilus maritimus were revealed by core genes for archaeal ammonia oxidation and carbon fixation, G+C content, and extensive synteny conservation.Candidatus Nitrosopumilus koreensis AR1, that was found to dominate an ammonia-oxidizing enrichment culture in marine sediment off Svalbard, the Arctic Circle. Despite a significant number of non-overlapping genes (ca. 30%), similarities of this strain to Ca. Nitrosopumilus maritimus were revealed by core genes for archaeal ammonia oxidation and carbon fixation, G+C content, and extensive synteny conservation.