Cell DifferentiationGerm LayersEpidermisRetinaEmbryonic Stem CellsGene Expression Regulation, DevelopmentalEndodermEmbryo, NonmammalianCells, CulturedEmbryo, MammalianCell LineageStem CellsGastrulaMesodermTranscription FactorsSignal TransductionTeratomaCell LineEctodermRNA, MessengerPluripotent Stem CellsMolecular Sequence DataOctamer Transcription Factor-3Gene Expression RegulationHomeodomain ProteinsCell DivisionNeoplasms, Germ Cell and EmbryonalIn Situ HybridizationEmbryonic DevelopmentDNA-Binding ProteinsBase SequenceMorphogenesisCell ProliferationTretinoinCell Culture TechniquesReverse Transcriptase Polymerase Chain ReactionXenopus ProteinsImmunohistochemistryEmbryoid BodiesMice, Inbred C57BLGastrulationPhenotypeMice, TransgenicBlastocystChick EmbryoBody PatterningMice, KnockoutGene ExpressionZebrafishSOXB1 Transcription FactorsTranscription, GeneticModels, BiologicalEmbryonic InductionSex DifferentiationAmino Acid SequenceInduced Pluripotent Stem CellsGene Expression ProfilingTime FactorsMutationBlastulaTestisNuclear ProteinsRepressor ProteinsCarcinoma, EmbryonalZebrafish ProteinsTrans-ActivatorsPromoter Regions, GeneticNeuronsCell CycleEmbryonic and Fetal DevelopmentXenopus laevisEmbryonal Carcinoma Stem CellsBone Morphogenetic ProteinsBlastomeresCell MovementSpermatogenesisGerm CellsActivinsFlow CytometryDNA PrimersAntigens, DifferentiationWheat Germ AgglutininsMesenchymal Stromal CellsT-Box Domain ProteinsCell AggregationReceptors, NotchXenopusTransfectionApoptosisDrosophilaNodal Signaling LigandsTumor Cells, CulturedFibroblastsBlotting, WesternTransforming Growth Factor betaEpithelial CellsNodal ProteinMembrane ProteinsCell AdhesionDrosophila Proteins