RNA, RibosomalPhylogenyRNA, Ribosomal, 16SDNA, RibosomalGenes, rRNABase SequenceMolecular Sequence DataSequence Analysis, DNARNA, BacterialRNA, Ribosomal, 18SRNA, Ribosomal, 28SRNARNA, Ribosomal, 5SDNA, BacterialNucleic Acid HybridizationBase CompositionDNA, Ribosomal SpacerGenesNucleic Acid ConformationRNA Polymerase ITranscription, GeneticBacterial Typing TechniquesRNA, Ribosomal, 23SSpecies SpecificityDNA Restriction EnzymesRNA, TransferRNA, Ribosomal, 5.8SPolymerase Chain ReactionCell NucleolusRNA, ViralRNA, Small InterferingRNA, FungalRNA, ProtozoanTetrahymenaSequence Homology, Nucleic AcidTranscription Factor TFIIIARibosome Subunits, SmallPhysarumRNA SplicingSoil MicrobiologyRNA EditingRNA, Small NuclearBacteriaDNA-Directed RNA PolymerasesTrichomonadidaDNA, MitochondrialRibosomesDNA, FungalEscherichia coliDNA, ProtozoanSequence Analysis, RNAGenome, MitochondrialNucleolus Organizer RegionSeawaterCloning, MolecularPol1 Transcription Initiation Complex ProteinsPolymorphism, Restriction Fragment LengthDNAFatty AcidsMetagenomeDNA, RecombinantGenes, BacterialRNA Processing, Post-TranscriptionalBradyrhizobiaceaeCluster AnalysisDNA PrimersProtozoan Infections, AnimalRNA, MessengerEvolution, MolecularRepetitive Sequences, Nucleic AcidGenetic VariationSingle-Strand Specific DNA and RNA EndonucleasesPlasmidsCiliophoraGeologic SedimentsParomomycinSequence AlignmentArchaeaRestriction MappingBiological EvolutionRNA, UntranslatedBiodiversityPromoter Regions, GeneticRNA Polymerase IIIActinomycetalesRNA PrecursorsRNA, CatalyticDNA, IntergenicMutationRNA VirusesAcanthamoebaRNA InterferenceEukaryotaTetrahymena pyriformisPhenotypeAmino Acid SequenceRNA, Spliced LeaderRNA Polymerase IISaccharomyces cerevisiaeGenes, Fungal