Oligonucleotide ProbesDNA ProbesBase SequenceNucleic Acid HybridizationMolecular Sequence DataOligonucleotidesOligonucleotide Array Sequence AnalysisPolymerase Chain ReactionMolecular Probe TechniquesRNA, Ribosomal, 16SSensitivity and SpecificityDNACloning, MolecularAmino Acid SequenceIn Situ Hybridization, FluorescenceDNA, BacterialRNA, BacterialSequence Homology, Nucleic AcidOligodeoxyribonucleotidesDigoxigeninRNA, MessengerOligonucleotides, AntisenseRNA ProbesMolecular ProbesGenes, BacterialDNA, RibosomalSpecies SpecificityFluorescent DyesSequence Analysis, DNADNA PrimersBlotting, SouthernBacteriaRestriction MappingRNA, Ribosomal, 18SIn Situ HybridizationPhylogenyEscherichia coliSewageRNA, RibosomalGenesRNA, Ribosomal, 23SWater MicrobiologyLimit of DetectionGene Expression ProfilingReproducibility of ResultsNucleic Acid ProbesBlotting, NorthernEvaluation Studies as TopicPlanktonTranscription, GeneticNucleic Acid ConformationCytophagaSulfur-Reducing BacteriaGene LibraryColony Count, MicrobialRNAEnvironmental MicrobiologyMutationSequence AlignmentNucleic Acid DenaturationGene ExpressionWaste Disposal, FluidFecesFresh WaterOligoribonucleotidesPlasmidsFluoresceinAlgorithmsDNA Restriction EnzymesCattleNucleic Acid Amplification TechniquesAllelesDNA, ViralBacteriological TechniquesGenetic VariationDNA, ComplementaryGene Expression RegulationBacterial ProteinsGenotypeSequence Homology, Amino AcidReverse Transcriptase Polymerase Chain ReactionBetaproteobacteriaPhosphorothioate OligonucleotidesBinding SitesTaq PolymeraseGene AmplificationBase Pair MismatchCell LineVirologyCarbocyaninesEcosystemCodonPromoter Regions, GeneticBacterial ToxinsDNA-Binding ProteinsOligodeoxyribonucleotides, AntisenseSeawaterPolymorphism, Restriction Fragment LengthChromosome MappingElectrophoresis, Agar Gel