Cell DifferentiationHematopoietic Stem CellsStem CellsHematopoietic Stem Cell TransplantationCell LineageCells, CulturedAntigens, CD34HematopoiesisBone Marrow CellsCell ProliferationGene Expression Regulation, DevelopmentalColony-Forming Units AssayMice, Inbred C57BLCell Culture TechniquesSignal TransductionCell DivisionFlow CytometryMyeloid Progenitor CellsEmbryonic Stem CellsStem Cell TransplantationEmbryo, MammalianCell LineTranscription FactorsNeural Stem CellsHematopoietic Stem Cell MobilizationMice, TransgenicAdult Stem CellsMice, KnockoutMultipotent Stem CellsBone MarrowGene Expression RegulationCell SeparationRNA, MessengerFetal BloodHomeodomain ProteinsStem Cell NicheReverse Transcriptase Polymerase Chain ReactionStem Cell FactorNeoplastic Stem CellsMesenchymal Stromal CellsPhenotypeMolecular Sequence DataEmbryo, NonmammalianTime FactorsCell MovementBase SequenceCell CountImmunohistochemistryCell CycleAntigens, CDDNA-Binding ProteinsGene ExpressionCell SurvivalErythroid Precursor CellsPluripotent Stem CellsNeuronsTransplantation, HomologousEndothelial CellsBasic Helix-Loop-Helix Transcription FactorsGranulocyte Colony-Stimulating FactorRegenerationProto-Oncogene Proteins c-kitLymphoid Progenitor CellsGene Expression ProfilingGranulocytesNeurogenesisMice, SCIDFetal Stem CellsModels, BiologicalApoptosisGreen Fluorescent ProteinsTretinoinBone Marrow TransplantationCoculture TechniquesHematopoietic SystemReceptors, NotchIn Situ HybridizationStromal CellsBiological MarkersAntigens, DifferentiationNestinNerve Tissue ProteinsTranscription, GeneticChick EmbryoMesodermErythropoiesisChemokine CXCL12MutationMembrane ProteinsEmbryonic DevelopmentRetroviridaeTransfectionInterleukin-3MegakaryocytesOsteoblastsRepressor ProteinsLymphopoiesisClone CellsOsteogenesisGenetic Vectors