Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Phylogenetic tree of AmoA proteins and ammonia oxidation archaea. (A) AmoA proteins were used for maximum likelihood (ML) phylogenetic reconstruction with reference sequences from the NCBI database. LAC: low ammonia concentration; HAC: high ammonia concentration. The sequences in bold were extracted from MAGs of this study. (B) Phylogenetic inference of ammonia-oxidizing archaea based on 122 single-copy, protein-coding marker genes.
