EndodermPhenotypeSOXF Transcription FactorsGene Expression Regulation, DevelopmentalMesodermGastrulaCell DifferentiationGerm LayersEmbryonic InductionBody PatterningVisceraEctodermGATA6 Transcription FactorNodal ProteinGATA5 Transcription FactorHepatocyte Nuclear Factor 3-betaHomeodomain ProteinsIn Situ HybridizationSOX Transcription FactorsDigestive SystemMutationEmbryo, NonmammalianTranscription FactorsEmbryonic Stem CellsMorphogenesisYolk SacCell LineageMolecular Sequence DataEmbryo, MammalianZebrafish ProteinsGATA4 Transcription FactorSignal TransductionZebrafishGATA Transcription FactorsActivinsXenopus ProteinsHigh Mobility Group ProteinsHMGB ProteinsBase SequenceEmbryonic DevelopmentT-Box Domain ProteinsBlastocystDNA-Binding ProteinsNotochordAmino Acid SequenceEmbryonic and Fetal DevelopmentChick EmbryoOtx Transcription FactorsFetal ProteinsGastrulationBranchial RegionChimeraTeratomaRNA, MessengerMice, TransgenicBone Morphogenetic Protein 4PancreasBone Morphogenetic ProteinsTrans-ActivatorsStem CellsMice, KnockoutCells, CulturedHepatocyte Nuclear Factor 3-gammaTretinoinFibroblast Growth FactorsBlastulaModels, BiologicalGenotypeFibroblast Growth Factor 4CoturnixCell LineMice, Inbred C57BLEmbryoid BodiesPrimitive StreakGenes, HomeoboxReverse Transcriptase Polymerase Chain ReactionOrganogenesisQuailGene ExpressionDNA PrimersImmunohistochemistryWnt ProteinsLeft-Right Determination FactorsUrochordataAllelesMice, Mutant StrainsEmbryonic StructuresGene DeletionTransforming Growth Factor betaPharynxXenopusHeadCell MovementGene Expression ProfilingTeratocarcinomaAnimals, Genetically ModifiedNuclear ProteinsDigestive System AbnormalitiesTime FactorsExtraembryonic Membranes