American Society for Microbiology, mSystems, 4(6), 2021
DOI: 10.1128/msystems.00546-21
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The recently established phylogeny of amoA provides a finer resolution than previous studies, allowing clustering of AOA beyond the order level and thus revealing novel clades. While the 16S rRNA gene is mostly appreciated in microbiome studies, this novel phylogeny is in limited use.