EndodermBlastocyst Inner Cell MassBlastocystSOXF Transcription FactorsEmbryonic DevelopmentEar, InnerGene Expression Regulation, DevelopmentalTrophoblastsEctodermGerm LayersEmbryo, MammalianMorulaGATA6 Transcription FactorEmbryonic and Fetal DevelopmentEmbryonic Stem CellsEmbryo Culture TechniquesBlastomeresOctamer Transcription Factor-3MesodermCell DifferentiationGastrulaCell LineageChimeraHMGB ProteinsHomeodomain ProteinsBody PatterningEmbryonic InductionEmbryo ImplantationFibroblast Growth Factor 4In Situ HybridizationVisceraMorphogenesisGATA5 Transcription FactorNodal ProteinTranscription FactorsCleavage Stage, OvumHepatocyte Nuclear Factor 3-betaGATA4 Transcription FactorSOX Transcription FactorsDigestive SystemZygotePregnancyEmbryo, NonmammalianTeratomaYolk SacStem CellsHair Cells, Auditory, InnerParthenogenesisCell AggregationEctogenesisTotipotent Stem CellsCell CountCulture TechniquesEmbryo TransferZebrafish ProteinsSOXB1 Transcription FactorsFertilization in VitroGATA Transcription FactorsActivinsDNA-Binding ProteinsCells, CulturedXenopus ProteinsHigh Mobility Group ProteinsZebrafishNuclear Transfer TechniquesSignal TransductionMice, Inbred StrainsFibroblast Growth FactorsMice, Inbred CBAMolecular Sequence DataNotochordGenes, LethalTretinoinGrowth Differentiation Factor 3Embryo LossT-Box Domain ProteinsModels, BiologicalCell Culture TechniquesChick EmbryoOtx Transcription FactorsFetal ViabilityRNA, MessengerMice, Inbred ICRFetal ProteinsBase SequenceGastrulationBranchial RegionCloning, OrganismImmunohistochemistryEmbryo Implantation, DelayedBone Morphogenetic Protein 4OocytesCell LineMice, Inbred C57BLGerm CellsPancreasZona PellucidaTime FactorsMice, TransgenicMicroscopy, Electron