FIG. 2.

Phylogenetic analysis of concatenated polypeptides representing subsets of H₄MPT-linked C₁ transfer genes (see Materials and Methods). Bootstrap values are shown for distance/parsimony analyses. (A) Tree resolving the position of the M. flagellatus sequences using six sequences in the concatenates. (B) Tree resolving the position of the X. autotrophicus sequences using seven sequences in the concatenates. A, P, α, β, and γ indicate Archaea, Planctomycetes, and α-, β-, and γ-Proteobacteria, respectively. AACY010825 is the sequence recovered from the Sargasso Sea metagenome.