Gene Expression RegulationGene Expression ProfilingOligonucleotide Array Sequence AnalysisGene Expression Regulation, PlantMicroRNAsTranscription, GeneticGene Expression Regulation, DevelopmentalGene ExpressionRNA, MessengerBase SequencePromoter Regions, GeneticMolecular Sequence DataTranscription FactorsRNA, UntranslatedComputational BiologyGenomePseudogenesModels, GeneticChromatinAlgorithmsBinding SitesGene Expression Regulation, NeoplasticGene Expression Regulation, ArchaealGene Expression Regulation, FungalNucleic Acid ConformationReverse Transcriptase Polymerase Chain ReactionGene Regulatory NetworksSequence Analysis, DNATranscriptomeEvolution, MolecularCell LineSignal TransductionAmino Acid SequenceRNA StabilityGene Expression Regulation, BacterialGene Expression Regulation, EnzymologicCluster AnalysisDown-RegulationDNA-Binding ProteinsBiotaGene Expression Regulation, ViralPhylogenyCarbon CycleUp-Regulation3' Untranslated RegionsArabidopsisSequence Analysis, RNACells, CulturedConserved SequenceMultigene FamilyMicroarray AnalysisCell Line, Tumor5' Untranslated RegionsEpigenesis, GeneticModels, BiologicalAlternative SplicingNitrificationSoftwareSoil MicrobiologyNitrogen CycleBacteriaHistonesDNA MethylationGene Expression Regulation, LeukemicDenitrificationGenesPolymerase Chain ReactionChromosome MappingGene LibraryCloning, MolecularMutationDatabases, GeneticMetagenomeDNA PrimersGenetic VariationGenes, BacterialGenomicsDNASequence Homology, Nucleic AcidGenes, PlantPhenotypeTransfectionArchaeaRNANitrogenPlasmidsDNA, ComplementarySpecies SpecificityNucleic Acid HybridizationBiodiversitySequence AlignmentGenes, ReporterExpressed Sequence TagsMolecular Sequence AnnotationCarbonEnvironmental MicrobiologyDNA, BacterialReal-Time Polymerase Chain ReactionBacterial ProteinsMice, Inbred C57BL