EndodermGerm LayersGastrulaMesodermSOXF Transcription FactorsGene Expression Regulation, DevelopmentalEctodermEmbryonic Stem CellsCell DifferentiationEmbryonic InductionTeratomaBody PatterningNeoplasms, Germ Cell and EmbryonalNodal ProteinEmbryo, NonmammalianGastrulationEmbryoid BodiesIn Situ HybridizationCell LineageEmbryo, MammalianPluripotent Stem CellsXenopus ProteinsOctamer Transcription Factor-3MorphogenesisHomeodomain ProteinsHepatocyte Nuclear Factor 3-betaZebrafishZebrafish ProteinsActivinsBlastulaDigestive SystemEmbryonic DevelopmentSOXB1 Transcription FactorsInduced Pluripotent Stem CellsVisceraTranscription FactorsGATA6 Transcription FactorWheat Germ AgglutininsT-Box Domain ProteinsGATA5 Transcription FactorEmbryonic and Fetal DevelopmentGATA Transcription FactorsBlastocystNodal Signaling LigandsStem CellsSOX Transcription FactorsCell Culture TechniquesSignal TransductionNotochordOrganizers, EmbryonicYolk SacHigh Mobility Group ProteinsChick EmbryoFetal ProteinsChimeraBone Morphogenetic Protein 4Xenopus laevisPrimitive StreakBlastodermFeeder CellsTestisMolecular Sequence DataBone Morphogenetic ProteinsFibroblast Growth Factor 4Fibroblast Growth FactorsSpermatogenesisGATA4 Transcription FactorBlastomeresImmunohistochemistryUrochordataDNA-Binding ProteinsRNA, MessengerTooth GermXenopusModels, BiologicalHMGB ProteinsCells, CulturedBase SequenceReverse Transcriptase Polymerase Chain ReactionStage-Specific Embryonic AntigensGenes, HomeoboxGoosecoid ProteinCell LineNuclear ReprogrammingNervous SystemOrganogenesisTretinoinEmbryonal Carcinoma Stem CellsWnt ProteinsTesticular NeoplasmsTransforming Growth Factor betaCell MovementAmino Acid SequenceDrosophilaGerm CellsOtx Transcription FactorsHeadNeural PlateBiological MarkersKaryotyping