Neural PlateEctodermNervous SystemXenopus ProteinsNeural CrestEmbryonic InductionGene Expression Regulation, DevelopmentalGastrulaGrowth PlateBody PatterningNeurulationBone PlatesIn Situ HybridizationEmbryo, NonmammalianNeural TubeHomeodomain ProteinsChick EmbryoBone Morphogenetic ProteinsProsencephalonXenopusZebrafish ProteinsNotochordXenopus laevisEmbryonic StructuresZebrafishOtx Transcription FactorsCentral Nervous SystemMorphogenesisRhombencephalonMesodermHMGB ProteinsGastrulationTranscription FactorsSOXB1 Transcription FactorsTissue TransplantationDiencephalonPaired Box Transcription FactorsBone Morphogenetic Protein 4Nerve Tissue ProteinsWnt ProteinsFibroblast Growth Factor 8TelencephalonQuailFibroblast Growth FactorsGerm LayersGenes, HomeoboxHedgehog ProteinsOrganizers, EmbryonicMolecular Sequence DataBlastulaChordata, NonvertebrateEpidermisSignal TransductionHeadMesencephalonMSX1 Transcription FactorSomitesEndodermCell DifferentiationEye ProteinsCiona intestinalisEyeTrans-ActivatorsAmino Acid SequenceUrochordataPAX2 Transcription FactorPleurodelesSequence Homology, Amino AcidAvian ProteinsAxisCell LineageWnt3 ProteinDNA-Binding ProteinsAmbystoma mexicanumAnimals, Genetically ModifiedBase SequenceEmbryonic DevelopmentTransplantsRepressor ProteinsProteinsMicroinjectionsOligodeoxyribonucleotides, AntisenseBasic Helix-Loop-Helix Transcription FactorsBlastodermNeuroepithelial CellsNeuronsNodal ProteinEmbryonic and Fetal DevelopmentMorpholinosCloning, MolecularVertebratesCoturnixNeural Tube DefectsHigh Mobility Group ProteinsBone Morphogenetic Protein ReceptorsSpinal CordCell MovementFetal ProteinsNeurogenesisReceptors, Notch