Germ LayersVertebratesEndodermGastrulaGene Expression Regulation, DevelopmentalMesodermNeoplasms, Germ Cell and EmbryonalEctodermZebrafishEmbryonic Stem CellsEmbryo, NonmammalianCell DifferentiationBody PatterningTeratomaGastrulationMolecular Sequence DataXenopus ProteinsZebrafish ProteinsPluripotent Stem CellsEmbryoid BodiesOctamer Transcription Factor-3In Situ HybridizationNodal Signaling LigandsWheat Germ AgglutininsEmbryonic InductionNodal ProteinInduced Pluripotent Stem CellsEmbryo, MammalianMorphogenesisAmino Acid SequenceHomeodomain ProteinsCell LineageChordata, NonvertebrateSOXB1 Transcription FactorsBase SequenceXenopus laevisEmbryonic DevelopmentTestisTranscription FactorsOrganizers, EmbryonicSpermatogenesisEvolution, MolecularBiological EvolutionCell Culture TechniquesSignal TransductionStem CellsDrosophilaXenopusBlastulaNervous SystemChick EmbryoTooth GermUrochordataSequence Homology, Amino AcidFishesModels, BiologicalRNA, MessengerFeeder CellsSOXF Transcription FactorsImmunohistochemistryT-Box Domain ProteinsGenes, HomeoboxNuclear ReprogrammingDrosophila ProteinsLampreysMutationActivinsEmbryonic and Fetal DevelopmentCell LineCells, CulturedConserved SequenceTesticular NeoplasmsBlastodermStage-Specific Embryonic AntigensCloning, MolecularAnimals, Genetically ModifiedReverse Transcriptase Polymerase Chain ReactionNotochordSpermatozoaHagfishesReptilesNeural PlateInvertebratesDNA-Binding ProteinsBone Morphogenetic ProteinsSequence AlignmentSpecies SpecificityChickensFibroblast Growth FactorsKaryotypingNeuronsPhenotypeGonadsNeural CrestGene ExpressionWnt ProteinsBlastomeresKruppel-Like Transcription FactorsKaryotypeCell Movement