Cell LineagePhenotypeCell DifferentiationStem CellsMolecular Sequence DataMutationGene Expression Regulation, DevelopmentalPhylogenyMice, TransgenicTranscription FactorsBase SequenceMice, Inbred C57BLCells, CulturedHomeodomain ProteinsMice, KnockoutHematopoietic Stem CellsSignal TransductionAmino Acid SequenceEvolution, MolecularGene Expression RegulationDNA-Binding ProteinsGenotypeFlow CytometrySequence Analysis, DNAThymus GlandCell DivisionMesodermCell LineRNA, MessengerEmbryonic Stem CellsEmbryo, MammalianGene ExpressionBiological EvolutionMorphogenesisImmunohistochemistryEmbryo, NonmammalianGerm CellsGenetic VariationBasic Helix-Loop-Helix Transcription FactorsIn Situ HybridizationAllelesCell ProliferationModels, BiologicalB-LymphocytesChimeraReverse Transcriptase Polymerase Chain ReactionBone Marrow CellsDNA PrimersT-LymphocytesGene Expression ProfilingClone CellsHematopoiesisDrosophila ProteinsImmunophenotypingReceptors, NotchPolymerase Chain ReactionSpecies SpecificityModels, GeneticMultipotent Stem CellsEctodermGene DeletionCaenorhabditis elegansEndodermTranscription, GeneticBody PatterningGreen Fluorescent ProteinsDrosophilaLymphopoiesisCell SeparationAnimals, Genetically ModifiedMice, Mutant StrainsZebrafishEmbryonic DevelopmentTrans-ActivatorsChromosome MappingNuclear ProteinsTime FactorsMembrane ProteinsPromoter Regions, GeneticCloning, MolecularCell MovementRepressor ProteinsUrochordataCrosses, GeneticTransgenesBlastomeresSequence Homology, Amino AcidAntigens, CDNeural CrestEpithelial CellsIntegrasesDrosophila melanogasterNeuronsSequence AlignmentOrgan SpecificityMosaicismPluripotent Stem CellsCaenorhabditis elegans ProteinsGene TargetingT-Lymphocyte Subsets