Embryonic Stem CellsRegenerationAmbystoma mexicanumExtremitiesStem CellsTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensAtrial AppendageCell DifferentiationPluripotent Stem CellsForelimbStem Cell TransplantationEmbryo, MammalianOctamer Transcription Factor-3Hematopoietic Stem CellsInduced Pluripotent Stem CellsCell LineageCell Culture TechniquesAdult Stem CellsGene Expression Regulation, DevelopmentalSalamandridaeCells, CulturedEmbryoid BodiesNeural Stem CellsCell LineHomeodomain ProteinsEmbryo ResearchMultipotent Stem CellsSOXB1 Transcription FactorsAnimal FinsTeratomaCell ProliferationStem Cell NicheHematopoietic Stem Cell TransplantationTotipotent Stem CellsPlanariansGerm LayersMesenchymal Stromal CellsTranscription FactorsMesenchymal Stem Cell TransplantationGene Expression ProfilingEndodermLeukemia Inhibitory FactorStem Cell ResearchChimeraSignal TransductionGene TargetingReverse Transcriptase Polymerase Chain ReactionStem Cell FactorCell DedifferentiationBlastocystStage-Specific Embryonic AntigensNuclear ReprogrammingTailGene Expression RegulationFeeder CellsMesodermTriturusRegenerative MedicineGreen Fluorescent ProteinsFlow CytometryBone Morphogenetic Protein 4Cell SeparationGene ExpressionTretinoinImmunohistochemistryBiological MarkersCoculture TechniquesMice, Inbred C57BLHematopoiesisMyocytes, CardiacModels, BiologicalNeuronsGerm CellsMolecular Sequence DataFetal Stem CellsPhenotypeEpigenesis, GeneticIn Situ HybridizationBase SequenceEmbryonic DevelopmentMice, SCIDActivinsTime FactorsMice, TransgenicNeoplastic Stem CellsRNA, MessengerWnt ProteinsCell SurvivalKaryotypingDNA-Binding ProteinsPlant StemsAmputationCloning, OrganismCell TransplantationZebrafishBody PatterningMice, Knockout