MegakaryocytesMegakaryocyte Progenitor CellsThrombopoietinHematopoietic Stem CellsThrombopoiesisBone Marrow CellsReceptors, ThrombopoietinHematopoiesisColony-Forming Units AssayThrombocytopeniaBlood PlateletsCell DifferentiationInterleukin-3Antigens, CD34PloidiesStem CellsStem Cell FactorCells, CulturedBone MarrowErythropoietinGranulocyte-Macrophage Colony-Stimulating FactorPlatelet CountCell LineageRecombinant ProteinsCell DivisionThrombocytosisPlatelet Membrane Glycoprotein IIbMyeloid Progenitor CellsGATA1 Transcription FactorPlatelet Factor 4Mice, Inbred C57BLErythroid Precursor CellsFlow CytometryCell SeparationCell ProliferationFetal BloodNF-E2 Transcription FactorNF-E2 Transcription Factor, p45 SubunitPolyploidyNeural Stem CellsCell CountErythroid-Specific DNA-Binding FactorsMice, TransgenicGranulocytesMegakaryocyte-Erythroid Progenitor CellsReceptors, CytokineThrombocythemia, EssentialMice, KnockoutAntigens, CDErythropoiesisColony-Stimulating FactorsLeukemia, Megakaryoblastic, AcuteGranulocyte Colony-Stimulating FactorMultipotent Stem CellsSignal TransductionEndothelial CellsBlood Cell CountGene Expression Regulation, DevelopmentalPlatelet Glycoprotein GPIb-IX ComplexPlatelet Membrane GlycoproteinsInterleukin-11Transcription FactorsStem Cell TransplantationCell LineNeurogenesisRNA, MessengerPrimary MyelofibrosisHematopoietic Cell Growth FactorsHematopoietic Stem Cell MobilizationBlood Platelet DisordersCytoplasmic GranulesCell Culture TechniquesGene Expression RegulationLymphoid Progenitor CellsTime FactorsAdult Stem Cells