GastrulaEmbryo, NonmammalianXenopus ProteinsOrganizers, EmbryonicEctodermEmbryonic InductionMesodermBlastulaGoosecoid ProteinGastrulationGene Expression Regulation, DevelopmentalBody PatterningPlatybasiaXenopus laevisMorphogenesisXenopusEndodermSea UrchinsPleurodelesIn Situ HybridizationZebrafishNervous SystemFetal ProteinsZebrafish ProteinsHomeodomain ProteinsBone Morphogenetic ProteinsT-Box Domain ProteinsTriturusUrochordataMicroscopy, ElectronBlastodermOtx Transcription FactorsMolecular Sequence DataCaveolaeNodal ProteinCaveolin 1BlastomeresGenes, HomeoboxActivinsTranscription FactorsAmino Acid SequenceCell Membrane StructuresSignal TransductionGerm LayersKillifishesAtlanto-Axial JointBlastocystEndocytosisCaveolinsMicroinjectionsFibroblast Growth FactorsPrimitive StreakSOXF Transcription FactorsTissue TransplantationEmbryonic DevelopmentChordataEmbryologyCell MembraneBase SequenceCoated Pits, Cell-MembraneSomitesCell LineageSequence Homology, Amino AcidTailModels, BiologicalCloning, MolecularMicroscopy, Electron, ScanningBone Morphogenetic Protein 4Chordata, NonvertebrateCell MovementChick EmbryoLarvaCell DifferentiationRNA, MessengerCentral Nervous SystemDNA-Binding ProteinsProteinsSalamandridaeDrosophilaCaveolin 3Neural PlateZygoteRhombencephalonDrosophila ProteinsDynaminsOdontoid ProcessOrthodontic Space ClosureNeural CrestLIM-Homeodomain ProteinsDNA, ComplementaryInhibinsCypriniformesMicroscopy, FluorescenceBone Morphogenetic Protein ReceptorsFreeze FracturingEchinodermataMutationIntercellular Signaling Peptides and ProteinsLytechinusCytoplasm