3 Archaea WCHD3 4 Archaea Euryarchaeota Methanomicrobia Methanomicrobiales Methanomicrobiaceae 3 Archaea Euryarchaeota Methanomicrobia Methanosarcinales Methanosarcinaceae Methanosarcina 253 Archaea Crenarchaeota MBGB 4 Archaea Euryarchaeota Methanomicrobia Methanosarcinales Methanosarcinaceae Methanolobus 5 Archaea Euryarchaeota Methanomicrobia Methanosarcinales Methanosarcinaceae Methanococcoides 3 Bacteria AC1 SHA 7 Bacteria AC1 SHA 14 Archaea Euryarchaeota Thermoplasmata E2 DHVEG 12 Archaea Crenarchaeota MCG 46 Archaea Crenarchaeota MCG B10 16 Archaea Euryarchaeota Thermoplasmata E2 DHVEG 86 Archaea Crenarchaeota MCG pGrfC26 22 Archaea Crenarchaeota MCG 26 Archaea Crenarchaeota MCG B10 3 Bacteria Chloroflexi Anaerolineae SBR1031 SJA 9 Archaea Crenarchaeota MCG 4 Bacteria Chloroflexi Dehalococcoidetes Dehalococcoidales Dehalococcoidaceae 27 Bacteria Bacteroidetes Flavobacteriia Flavobacteriales Flavobacteriaceae Flavobacterium 17 Bacteria Chloroflexi Anaerolineae SHA 5 Bacteria Chloroflexi Anaerolineae CFB 4 Bacteria Planctomycetes Planctomycetia Pirellulales Pirellulaceae 23 Bacteria Proteobacteria Deltaproteobacteria Desulfobacterales Desulfobacteraceae Desulfococcus 17 Bacteria Proteobacteria Gammaproteobacteria Chromatiales 6 Archaea Crenarchaeota MCG 18 Archaea Crenarchaeota MCG pGrfC26 14 Archaea Euryarchaeota Thermoplasmata E2 DHVEG 17 Bacteria Planctomycetes Phycisphaerae MSBL9 37 Archaea Crenarchaeota MCG pGrfC26 22 Bacteria Chloroflexi Anaerolineae CFB 9 Archaea Euryarchaeota Thermoplasmata E2 DHVEG 3 Bacteria Chloroflexi Anaerolineae GCA004 22 Bacteria Chloroflexi Anaerolineae CFB 5 Archaea Crenarchaeota MBGB 4 Bacteria Chloroflexi Anaerolineae GCA004 20 Bacteria Proteobacteria Deltaproteobacteria 6 Bacteria Chloroflexi Anaerolineae SHA 7 Bacteria Proteobacteria Betaproteobacteria Hydrogenophilales Hydrogenophilaceae Thiobacillus 25 Bacteria Proteobacteria Epsilonproteobacteria Campylobacterales Helicobacteraceae Sulfurimonas 11 Bacteria Proteobacteria Deltaproteobacteria Desulfuromonadales Pelobacteraceae Pelobacter 6 Bacteria Proteobacteria Epsilonproteobacteria Campylobacterales Helicobacteraceae Sulfurimonas 3 Bacteria OP8 OP8_2 5 Bacteria Chloroflexi Anaerolineae CFB 65 Bacteria Spirochaetes Spirochaetes Spirochaetales Spirochaetaceae 7 Bacteria Proteobacteria Deltaproteobacteria Myxococcales Nannocystaceae Plesiocystis 3 Bacteria Chloroflexi Anaerolineae SHA 6 Bacteria Caldithrix Caldithrixae Caldithrixales Caldithrixaceae 7 Bacteria Chloroflexi Dehalococcoidetes Dehalococcoidales Dehalococcoidaceae 8 Bacteria Chloroflexi Anaerolineae MSB 3 Bacteria 15 Archaea Crenarchaeota MCG 9 Bacteria Chloroflexi Anaerolineae SHA 11 Bacteria Proteobacteria Deltaproteobacteria Desulfarculales Desulfarculaceae 12 Bacteria OP9 JS1 SB 22 Bacteria Firmicutes Clostridia Clostridiales Clostridiaceae Clostridium 7 Bacteria Proteobacteria Deltaproteobacteria Desulfobacterales Desulfobacteraceae 7 Bacteria Chloroflexi Anaerolineae SBR1031 SHA 3 Bacteria Chloroflexi Anaerolineae MSB 10 Bacteria Nitrospirae Nitrospira Nitrospirales LCP 17 Bacteria Chloroflexi Anaerolineae GCA004 6 Bacteria Chloroflexi Anaerolineae GCA004 24 Bacteria VHS 14 Bacteria OP8 OP8_1 HMMVPog 3 Bacteria SAR406 AB16 Arctic96B A714017 so4B24 8 Archaea Crenarchaeota MCG 11 Bacteria Proteobacteria Gammaproteobacteria Chromatiales 7 Bacteria Proteobacteria Deltaproteobacteria Desulfarculales Desulfarculaceae 12 Archaea Crenarchaeota MCG pGrfC26 12 Bacteria Proteobacteria Deltaproteobacteria Desulfobacterales Desulfobacteraceae Desulfococcus 5 Bacteria Proteobacteria Gammaproteobacteria Chromatiales 11 Archaea Euryarchaeota Thermoplasmata E2 DHVEG 3 Bacteria Bacteroidetes Bacteroidia Bacteroidales 10 Bacteria Chloroflexi Anaerolineae CFB 5 Bacteria Proteobacteria Deltaproteobacteria IndB3 6 Bacteria GN02 3BR 6 Bacteria Proteobacteria Deltaproteobacteria Syntrophobacterales Syntrophaceae Desulfobacca 8 Bacteria AC1 B04R032 10 Archaea Euryarchaeota Thermoplasmata E2 DHVEG 38 Bacteria Proteobacteria Epsilonproteobacteria Campylobacterales Helicobacteraceae 4 Bacteria Chloroflexi Anaerolineae SB 15 Bacteria Proteobacteria Gammaproteobacteria Chromatiales 8 Archaea Euryarchaeota Thermoplasmata E2 DHVEG 46 Archaea Crenarchaeota MCG B10 13 Bacteria Chloroflexi Anaerolineae CFB 3 Bacteria Chloroflexi Anaerolineae SHA 4 Bacteria Proteobacteria 3 Bacteria Chloroflexi Anaerolineae SHA 3 Bacteria Proteobacteria Deltaproteobacteria Desulfobacterales Desulfobacteraceae 3 Bacteria Proteobacteria Gammaproteobacteria Xanthomonadales Sinobacteraceae 7 Bacteria Chloroflexi Anaerolineae GCA004 4 Bacteria Proteobacteria Gammaproteobacteria Oceanospirillales 6 Bacteria Proteobacteria Epsilonproteobacteria Campylobacterales Helicobacteraceae 6 Bacteria Acidobacteria BPC102 B110 5 Bacteria Chloroflexi Anaerolineae SB 6 Bacteria Chloroflexi Anaerolineae GCA004 8 Archaea Crenarchaeota MBGB 4 Archaea Euryarchaeota Thermoplasmata E2 8 Archaea Euryarchaeota Thermoplasmata E2 DHVEG 5 Bacteria Chloroflexi Anaerolineae SBR1031 SHA 5 Bacteria Proteobacteria Epsilonproteobacteria Campylobacterales Helicobacteraceae 7 Bacteria Chloroflexi Anaerolineae MSB 6 Bacteria Proteobacteria Deltaproteobacteria Syntrophobacterales Syntrophobacteraceae 9 Bacteria Proteobacteria Gammaproteobacteria Alteromonadales Psychromonadaceae Psychromonas 5 Bacteria Chloroflexi Anaerolineae GCA004 11 Bacteria Chloroflexi Anaerolineae SBR1031 SHA 9 Bacteria Chloroflexi Anaerolineae H39 15 Bacteria Chloroflexi Anaerolineae OPB11 9 Bacteria Chloroflexi Anaerolineae SB 7 Bacteria Chloroflexi Anaerolineae OPB11 14 Bacteria Chloroflexi Anaerolineae OPB11 12 Bacteria Chloroflexi Anaerolineae OPB11 6 Bacteria Chloroflexi Anaerolineae OPB11 14 Bacteria Chloroflexi Anaerolineae OPB11