Extended Data Fig. 5: Maximum-likelihood tree of amino acid sequences of group 3 [NiFe]-hydrogenase large subunits, a marker for hydrogen production during fermentation processes.
From: Trace gas oxidizers are widespread and active members of soil microbial communities
The tree shows 129 sequences from soil metagenome-assembled genomes (blue) alongside 172 representative sequences from NCBI reference genomes (black). The subgroup of each reference sequence is denoted according to the HydDB classification scheme40. The tree was constructed using the JTT matrix-based model, used all sites, and was bootstrapped with 50 replicates and midpoint-rooted. All sequences shorter than 350 amino acids were omitted. Source data is provided in Newick (nwk) format.
