Genome Sequence of Candidatus Nitrosoarchaeum limnia BG20, a Low-Salinity Ammonia-Oxidizing Archaeon from the San Francisco Bay Estuary

Here, we present the draft genome sequence of Candidatus Nitrosoarchaeum limnia BG20, an ammonia-oxidizing archaeon enriched in culture from low-salinity sediments of the San Francisco Bay estuary. The genome sequence revealed many similarities to the previously sequenced genome of Ca. Nitrosoarchaeum limnia SFB1 (enriched from a nearby site in San Francisco Bay) and is representative of a clade of ammonia-oxidizing archaea (AOA) found in low-salinity habitats worldwide.