Stem CellsEmbryo, MammalianEmbryo, NonmammalianChick EmbryoEmbryonic Stem CellsStem Cell TransplantationHematopoietic Stem CellsAdult Stem CellsEmbryo ImplantationPluripotent Stem CellsBlastocystEmbryonic DevelopmentHematopoietic Stem Cell TransplantationCell DifferentiationStem Cell NicheGene Expression Regulation, DevelopmentalNeural Stem CellsInduced Pluripotent Stem CellsMultipotent Stem CellsMesenchymal Stem Cell TransplantationEmbryonic and Fetal DevelopmentEmbryo LossCell LineageStem Cell FactorMesenchymal Stromal CellsFertilization in VitroPregnancyMolecular Sequence DataBlastomeresCleavage Stage, OvumMammalsStem Cell ResearchEmbryo ResearchSignal TransductionCells, CulturedTranscription FactorsEmbryo DispositionPlant StemsBase SequenceIn Situ HybridizationZygoteFetal Stem CellsHomeodomain ProteinsCell LineZebrafishMorulaCryopreservationAmino Acid SequenceCell ProliferationMesodermOocytesMice, Inbred C57BLRNA, MessengerBody PatterningOctamer Transcription Factor-3PhenotypeTime FactorsGastrulaCloning, OrganismHematopoietic Stem Cell MobilizationMorphogenesisNeoplastic Stem CellsMutationCell Culture TechniquesModels, BiologicalBone Marrow CellsCulture TechniquesNuclear Transfer TechniquesEctodermDrosophila ProteinsEndodermReverse Transcriptase Polymerase Chain ReactionGene ExpressionGerm CellsTotipotent Stem CellsRegenerationImmunohistochemistryZebrafish ProteinsDrosophilaHematopoiesisCell SeparationGreen Fluorescent ProteinsGene Expression RegulationChimeraDNA-Binding ProteinsMice, TransgenicSingle Embryo TransferGene Expression ProfilingFlow CytometryEctogenesisAnimals, Genetically ModifiedRegenerative MedicineCell DivisionNeuronsCloning, MolecularParthenogenesisTransplantation, AutologousXenopus ProteinsSequence Homology, Amino AcidCell Survival