RNA, Ribosomal, 16SDNA, RibosomalGenes, rRNAPhylogenyDNA, BacterialSequence Analysis, DNAMolecular Sequence DataRNA, BacterialBacteriaWater MicrobiologySoil MicrobiologyBacterial Typing TechniquesPolymerase Chain ReactionGeologic SedimentsRNA, RibosomalBase CompositionRNA, Ribosomal, 23SBase SequenceRNARNA, Ribosomal, 18SFatty AcidsSeawaterNucleic Acid HybridizationSpecies SpecificityRNA, Ribosomal, 5SCluster AnalysisActinomycetalesSequence Homology, Nucleic AcidRNA, Small InterferingRNA, ViralPhenotypeFresh WaterDNA, ArchaealBacteroidetesAlphaproteobacteriaRNA, Ribosomal, 28SKoreaQuinonesDNA, Ribosomal SpacerRNA SplicingPolymorphism, Restriction Fragment LengthVitamin K 2Nucleic Acid ConformationRNA EditingBiodiversityrRNA OperonDNA PrimersActinobacteriaGenes, BacterialGammaproteobacteriaSodium ChlorideAerobiosisPigments, BiologicalDNA-Directed RNA PolymerasesBetaproteobacteriaRNA, MessengerRNA, FungalHot SpringsRNA, Ribosomal, 5.8SMutationBacillaceaeGenetic VariationEnvironmental MicrobiologyFlavobacteriaceaeRNA Processing, Post-TranscriptionalSewageRNA, TransferMethaneDiaminopimelic AcidProteobacteriaChinaMetagenomeGentian VioletRNA, ArchaealGram-Positive RodsArchaeaRNA PrecursorsGenotypeNocardiaBacterial ProteinsEcosystemTranscription, GeneticAnaerobiosisRNA InterferenceRNA VirusesRNA, ProtozoanTemperatureMethanobacterialesDenaturing Gradient Gel ElectrophoresisSequence Analysis, RNADeltaproteobacteriaBiotaCytophagaceaeRNA, Double-StrandedAmino Acid SequencePhenazinesMethanosarcinalesDNA Mutational AnalysisComamonadaceaeHalobacteriaceae