Distinct gene set in two different lineages of ammonia-oxidizing archaea supports the phylum Thaumarchaeota.

Globally distributed archaea comprising ammonia oxidizers of moderate terrestrial and marine environments are considered the most abundant archaeal organisms on Earth. Based on 16S rRNA phylogeny, initial assignment of these archaea was to the Crenarchaeota. By contrast, features of the first genome sequence from a member of this group su...更多