Cell LineageStem CellsCell DifferentiationMice, TransgenicClone CellsT-Lymphocyte SubsetsMice, Inbred C57BLPhylogenyCaenorhabditis elegansMolecular Sequence DataEvolution, MolecularZebrafishGenomeSequence Analysis, DNAGenomicsDatabases, GeneticModels, AnimalDrosophila melanogasterSpecies SpecificityBiological EvolutionModels, BiologicalPhenotypeBase SequenceAmino Acid SequenceModels, GeneticMolecular Sequence AnnotationMutationLongevityAnimals, Genetically ModifiedGenetic VariationInternetGene Expression Regulation, DevelopmentalSequence AlignmentBacteriaGenome, BacterialSaccharomyces cerevisiaeGene Expression ProfilingComputational BiologyCaenorhabditis elegans ProteinsGenome, HelminthUser-Computer InterfaceOrganisms, Genetically ModifiedEmbryo, NonmammalianDrosophilaBacterial ProteinsTranscription FactorsGenome, FungalSignal TransductionSoftwareExpressed Sequence TagsDrosophila ProteinsSequence Homology, Amino AcidLarvaGenome, InsectDNA, BacterialMultigene FamilyEukaryotaVertebratesDaphniaChromosome MappingInvertebratesGenes, InsectMetabolic Networks and PathwaysProteomeConserved SequenceEscherichia coliYeastsGenes, HelminthGene Regulatory NetworksDNA, RibosomalGene DuplicationCulture MediaPolymerase Chain ReactionDatabases, ProteinProtein Interaction MappingZebrafish ProteinsGene Expression RegulationPlanariansEukaryotic CellsDevelopmental BiologyRNA, Ribosomal, 16SOligonucleotide Array Sequence AnalysisCaenorhabditisGene Knockout TechniquesDNA PrimersGene DeletionDatabases, Nucleic AcidGenetic TechniquesDNA, MitochondrialRNA InterferenceCloning, MolecularGenome, ProtozoanGene Expression Regulation, BacterialProteomicsCluster AnalysisGenes, BacterialAmoebozoaGenotypeSequence Homology, Nucleic AcidOryzias