Table S3 The phylogenetic affiliation and distribution of the archaeal 16S rRNA gene sequences analyzed from the MS library.

Phylogenetic group / Closest sequences/microorganism / Acession no. / Identity (%) / Habitat of closest relative
Crenarchaeota / Unclassified_Thermoprotei / AY082452 / 97% / Acid mine drainage system
Uncultured crenarchaeote / AJ567642 / 100% / Deep-sea sediment
Unclassified_Thermoprotei / GQ906625 / 98% / Water in the lower Mississippi River
New Orleans
Uncultured crenarchaeote / JF262263 / 99% / Lake
Unclassified_Thermoprotei / AB550812 / 99% / River water
Unclassified_Thermoprotei / AB113628 / 99% / PCR-derived sequence from subsurface geothermal water
Unclassified_Thermoprotei / HQ141807 / 99% / Leachate sediment
Unclassified_Thermoprotei / HQ141807 / 95% / Leachate sediment
Unclassified_Thermoprotei / HM187561 / 96% / Saturated zone of the Hanford Site 300 area subsurface
Unclassified_Thermoprotei / FJ584332 / 98% / Acidic red soil
Unclassified_Thermoprotei / EF022070 / 99% / Trembling aspen rhizosphere under elevated CO2 conditions
Uncultured archaeon / EF020858 / 97% / Trembling aspen rhizosphere under ambient CO2 conditions
Uncultured crenarchaeote / U59986 / 99% / Lake Griffy sediment sample, Bloomington, IN
Unclassified_Thermoprotei / FJ655643 / 96% / Lake Griffy sediment sample, Bloomington, IN
Uncultured crenarchaeote / AJ937877 / 99% / Lake Vilar
Unclassified_Thermoprotei / HQ532941 / 92% / Waters of Yangtze River
Unclassified_Thermoprotei / HQ532941 / 98% / Waters of Yangtze River
Unclassified_Thermoprotei / AM076830 / 96% / Freshwater sulfurous lake
Unclassified_Thermoprotei / GU127476 / 99% / Sediment
Uncultured archaeon / HM244311 / 97% / Middle sediment from Honghu Lake
Unclassified_Thermoprotei / DQ785305 / 97% / Anoxic zone of a meromictic lake
Uncultured archaeon / DQ785305 / 98% / Anoxic zone of a meromictic lake
Unclassified_Thermoprotei / GU135482 / 98% / Sediment
Unclassified_Thermoprotei / HM244189 / 99% / Lower sediment from Honghu Lake
Euryarchaeota / Uncultured archaeon / AJ009515 / 99% / Anaerobic TCB
Uncultured archaeon / AJ009515 / 97% / Anaerobic TCB
Uncultured archaeon / HQ330678 / 84% / Sediment
/ Uncultured Methanosarcina sp. / HQ141843 / 99% / Leachate sediment
Methanosaeta sp. / HM639830 / 99% / Activated sludge wastewater treatment plant
Uncultured Methanobacteriaceae archaeon / DQ133424 / 97% / Mine
Unclassified archaeon / FJ547059 / 98% / Stratified lake
Uncultured euryarchaeote / AM229255 / 99% / Marine gas hydrate bearing subsurface sediment