EndodermMesodermGastrulaGene Expression Regulation, DevelopmentalEmbryonic InductionEctodermBody PatterningEmbryo, NonmammalianSOXF Transcription FactorsXenopus ProteinsIn Situ HybridizationSomitesInduced Pluripotent Stem CellsFetal ProteinsCell DifferentiationMorphogenesisGerm LayersNodal ProteinHomeodomain ProteinsT-Box Domain ProteinsZebrafish ProteinsChick EmbryoGastrulationEmbryonic Stem CellsActivinsZebrafishTranscription FactorsVisceraCell LineageBone Morphogenetic ProteinsXenopusBone Morphogenetic Protein 4Embryo, MammalianDigestive SystemGATA5 Transcription FactorCoturnixSignal TransductionEmbryonic and Fetal DevelopmentFibroblast Growth FactorsGenes, HomeoboxGATA6 Transcription FactorQuailHepatocyte Nuclear Factor 3-betaXenopus laevisYolk SacEmbryonic DevelopmentSOX Transcription FactorsGoosecoid ProteinInhibitory Postsynaptic PotentialsPrimitive StreakBranchial RegionWnt ProteinsGATA Transcription FactorsDNA-Binding ProteinsNuclear ReprogrammingGATA4 Transcription FactorMolecular Sequence DataHMGB ProteinsEmbryoid BodiesHeadChimeraBlastocystTeratomaNervous SystemPluripotent Stem CellsBlastulaTrans-ActivatorsFibroblast Growth Factor 8gamma-Aminobutyric AcidNeural CrestLeft-Right Determination FactorsNeural InhibitionHigh Mobility Group ProteinsDrosophilaTissue TransplantationBase SequenceDrosophila ProteinsNodal Signaling LigandsTransforming Growth Factor betaBlastodermStem CellsTailInhibinsSOXB1 Transcription FactorsTwist Transcription FactorTretinoinHeartOtx Transcription FactorsAmino Acid SequenceFibroblast Growth Factor 4Octamer Transcription Factor-3Models, BiologicalHedgehog ProteinsRNA, MessengerReceptors, GABA-ABasic Helix-Loop-Helix Transcription FactorsAvian ProteinsAnimals, Genetically ModifiedExtremitiesProteins