Neuroectodermal Tumors, PrimitivePrimitive StreakNeuroectodermal Tumors, Primitive, PeripheralHematopoietic Stem CellsNeuroectodermal TumorsGastrulaEndodermHematopoiesisAntigens, CD34Cell DifferentiationYolk SacCell LineageGene Expression Regulation, DevelopmentalColony-Forming Units AssayErythropoiesisMesodermBone Marrow CellsADP-ribosyl CyclaseGerm LayersMolecular Sequence DataStem Cell FactorChick EmbryoCells, CulturedBiological EvolutionAntigens, CD38Sarcoma, EwingEmbryo, MammalianMedulloblastomaErythroid Precursor CellsFossilsEctodermIn Situ HybridizationBody PatterningCell DivisionBlastodermStem CellsBase SequenceHagfishesInterleukin-3Bone MarrowHematopoietic Cell Growth FactorsAntigens, CDEmbryonic and Fetal DevelopmentChimeraErythroblastsAmino Acid SequenceNAD+ NucleosidaseTranscription FactorsMorphogenesisPhylogenyHematopoietic SystemGATA6 Transcription FactorFetal ProteinsEmbryonic Stem CellsEvolution, ChemicalHomeodomain ProteinsFetal BloodDentitionSignal TransductionCerebellar NeoplasmsBiogenesisTime FactorsMice, Inbred C57BLCell SeparationHemangioblastsEmbryo, NonmammalianAntigens, DifferentiationErythroid CellsRNA, MessengerFlow CytometryGastrulationZebrafish ProteinsMeteoroidsModels, BiologicalDNA-Binding ProteinsZebrafishImmunohistochemistryMyelopoiesisMice, SCIDSupratentorial NeoplasmsEmbryonic DevelopmentGene ExpressionPhenotypeEmbryonic InductionMice, TransgenicGATA1 Transcription FactorCell Culture TechniquesCell LineNodal ProteinBrain NeoplasmsThrombopoietinMegakaryocytesEvolution, MolecularMutationReverse Transcriptase Polymerase Chain ReactionProto-Oncogene Proteins c-kitRNA-Binding Protein EWSSharksCell MovementFetus