EndodermNodal Signaling LigandsSOX Transcription FactorsEmbryonic InductionSOXF Transcription FactorsHepatocyte Nuclear Factor 3-betaNodal ProteinEmbryo, MammalianEmbryonic Stem CellsActivinsGene Expression Regulation, DevelopmentalGastrulaMesodermPrimitive StreakGerm LayersCell DifferentiationEmbryo, NonmammalianDigestive SystemHMGB ProteinsBody PatterningChick EmbryoCell LineageIn Situ HybridizationMorphogenesisFibroblast Growth Factor 4Homeodomain ProteinsGastrulationEmbryonic DevelopmentEmbryonic and Fetal DevelopmentWnt3 ProteinEmbryoid BodiesTranscription FactorsSignal TransductionEnzyme InductionBlastocystEmbryo ImplantationHorseradish PeroxidasePluripotent Stem CellsProsencephalonPancreasDNA-Binding ProteinsEctodermTrans-ActivatorsCell LineYolk SacCell Culture TechniquesReverse Transcriptase Polymerase Chain ReactionGene Expression ProfilingMice, TransgenicZebrafishHepatocytesTransforming Growth Factor betaCells, CulturedGene ExpressionCulture Media, Serum-FreeVisceraZebrafish ProteinsRNA, MessengerReceptor, Platelet-Derived Growth Factor alphaGATA6 Transcription FactorEmbryo LossMolecular Sequence DataBlastomeresXenopus ProteinsPregnancyGATA5 Transcription FactorNuclear ProteinsBase SequenceTime FactorsReceptors, CXCR4Biological MarkersFlow CytometryNotochordCleavage Stage, Ovum