PseudogenesBiotaCarbon CycleMolecular Sequence DataNitrificationPhylogenyNitrogen CycleSoil MicrobiologySequence Analysis, DNABase SequenceBacteriaDenitrificationMultigene FamilyMetagenomeGene Expression ProfilingOligonucleotide Array Sequence AnalysisEvolution, MolecularArchaeaBiodiversityChromosome MappingGenesGenetic VariationEnvironmental MicrobiologyGene Regulatory NetworksPterisSequence Homology, Nucleic AcidCluster AnalysisGenes, BacterialNitrogenSoilMetagenomicsMicroarray AnalysisGallionellaceaeCarbonAmino Acid SequenceRhizosphereGene LibraryMethaneDNA, BacterialUraniumBiodegradation, EnvironmentalCloning, MolecularGenomicsSoil PollutantsGene PoolGene DuplicationRNA, Ribosomal, 16SGenes, PlantDatabases, GeneticMolecular Sequence AnnotationAutotrophic ProcessesBiological EvolutionEcosystemSpecies SpecificityNitrite ReductasesSequence AlignmentPolymerase Chain ReactionComputational BiologyTranscription, GeneticModels, GeneticDNADNA, ArchaealGenome, BacterialNucleic Acid HybridizationOpen Reading FramesGenomeY ChromosomeGenes, ArchaealPhosphorusRNA, MessengerIntronsPolymorphism, GeneticGenetic TechniquesGenome, PlantMetabolic Networks and PathwaysOxidoreductasesCosmidsOligonucleotide ProbesGene Transfer, HorizontalDenaturing Gradient Gel ElectrophoresisBrassica napusMutationBlotting, SouthernGenome, HumanDNA, RibosomalDNA PrimersSulfurGeologic SedimentsAlgorithmsRecombination, GeneticExpressed Sequence TagsSulfatesPhenotypePlasmidsAllelesGenetic LociExonsBacterial ProteinsDNA, PlantGene Expression Regulation