FIG 6.

Phylogenetic affiliations of the amino acid sequences of the mtrH (A) and mta (B) genes present in the Methanoliparia_GoM and “Ca. Syntrophoarchaeum” bins. (A) Phylogenetic tree of the amino acid sequence of the mtrH gene. The sequence present in the Methanoliparia_GoM_asphalt MAG is red. An mtrH gene was found neither in Methanoliparia_GoM_oil nor in Syntropho_SAG. (B) Phylogenetic tree of the amino acid sequence of the mta genes. The sequence present in Methanoliparia_GoM is red. “Ca. Syntrophoarchaeum” sequences, including those found in Syntropho_SAG and in previous studies, are orange. For both trees, scale bars represent the number of amino acid substitutions per site, and black circles represent bootstrap values of over 90%. The name includes the locus tag of the gene, the MAG or SAG, and the corresponding node.