EndodermGenotypePhenotypeSOXF Transcription FactorsGene Expression Regulation, DevelopmentalMesodermGastrulaCell DifferentiationPolymorphism, GeneticMutationGerm LayersEmbryonic InductionMolecular Sequence DataBody PatterningVisceraEctodermAllelesGATA6 Transcription FactorNodal ProteinGATA5 Transcription FactorHepatocyte Nuclear Factor 3-betaHomeodomain ProteinsIn Situ HybridizationDigestive SystemSOX Transcription FactorsEmbryo, NonmammalianTranscription FactorsBase SequencePolymorphism, Single NucleotideEmbryonic Stem CellsMorphogenesisYolk SacCell LineageGenetic Predisposition to DiseasePolymerase Chain ReactionEmbryo, MammalianGene FrequencyZebrafish ProteinsSignal TransductionGenetic VariationGATA4 Transcription FactorZebrafishGATA Transcription FactorsActivinsXenopus ProteinsHigh Mobility Group ProteinsAmino Acid SequenceSequence Analysis, DNAHomozygoteHMGB ProteinsPhylogenyDNA-Binding ProteinsEmbryonic DevelopmentBlastocystT-Box Domain ProteinsChimeraNotochordDNA PrimersRNA, MessengerEmbryonic and Fetal DevelopmentChick EmbryoMice, TransgenicOtx Transcription FactorsFetal ProteinsGastrulationMice, KnockoutReverse Transcriptase Polymerase Chain ReactionHeterozygoteCase-Control StudiesBranchial RegionTeratomaMice, Inbred C57BLGenetic MarkersBone Morphogenetic Protein 4Polymorphism, Restriction Fragment LengthHaplotypesPancreasModels, BiologicalCells, CulturedCell LineTrans-ActivatorsBone Morphogenetic ProteinsGene DeletionModels, GeneticStem CellsChromosome MappingFibroblast Growth FactorsHepatocyte Nuclear Factor 3-gammaTretinoinGene ExpressionBlastulaTime FactorsFibroblast Growth Factor 4CoturnixMice, Mutant StrainsImmunohistochemistryCrosses, GeneticEmbryoid BodiesGene Expression ProfilingPrimitive Streak