Phylogenetic consensus tree constructed from full-length amoA and pmoA gene sequences aligned in-frame. Significant bootstrap values (exceptions marked with *) are given at branch points for the maximum parsimony (MP), maximum likelihood (ML) and distance-minimal evolution (D) inference methods. Phylogenetic subgroups discussed in the text are shaded. Scale bar is equivalent to 10% sequence divergence. GenBank accessions are as follows - Ammonia oxidizers: NEU, Nitrosomonas europaea ; NET, Nitrosomonas eutropha ; TK794, Nitrosomonas sp. TK794 (AB031869); NCR, Nitrosomonas cryotolerans , AL212, JL21, GH22, Nitrosomonas strains; NAV, Nitrosospira sp. NpAV; NBR, Nitrosospira briensis ; N39, Nitrosospira sp. 39-19; NHB, Nitrosospira sp. AHB1; NVT, Nitrosospira (Nitrosovibrio) tenuis ; NMU, Nitrosospira (Nitrosolobus) multiformis ; NM24, Nitrosospira (Nitrosolobus) sp. 24C; NOC, Nitrosococcus oceani ; C113, Nitrosococcus sp. C113. Methane oxidizers: MCB, Methlyococcus capsulatus (Bath) (L40804, U94337, AF091320), MTR, Methylosinus trichosporium OB3b (U31650); MCYS, Methylocystis sp. strain M (U81596).
Jeanette M. Norton, J. Javier Alzerreca, Yuichi Suwa, and Martin G. Klotz. 2002. Diversity of ammonia monooxygenase operon in autotrophic ammonia-oxidizing bacteria. Archives of Microbiology 177:139-149.
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