NotochordNeural PlateEmbryonic InductionEctodermNervous SystemGene Expression Regulation, DevelopmentalXenopus ProteinsGastrulaEmbryo, NonmammalianNeural CrestBody PatterningUrochordataCiona intestinalisIn Situ HybridizationFetal ProteinsZebrafishChick EmbryoMesodermZebrafish ProteinsMorphogenesisNeurulationGrowth PlateHomeodomain ProteinsCentral Nervous SystemBone Morphogenetic ProteinsXenopus laevisBone PlatesXenopusNeural TubeSomitesHedgehog ProteinsProsencephalonGastrulationOrganizers, EmbryonicEmbryonic StructuresTranscription FactorsQuailOtx Transcription FactorsChordata, NonvertebrateRhombencephalonTissue TransplantationPaired Box Transcription FactorsT-Box Domain ProteinsEndodermBone Morphogenetic Protein 4Molecular Sequence DataFibroblast Growth FactorsDiencephalonWnt ProteinsGerm LayersHMGB ProteinsGenes, HomeoboxFibroblast Growth Factor 8Nerve Tissue ProteinsCell DifferentiationSOXB1 Transcription FactorsSignal TransductionCoturnixTailTrans-ActivatorsAmino Acid SequenceHepatocyte Nuclear Factor 3-betaBlastulaTelencephalonAxisSequence Homology, Amino AcidEmbryonic DevelopmentAnimals, Genetically ModifiedHeadDNA-Binding ProteinsCell LineageEmbryonic and Fetal DevelopmentBlastomeresMesencephalonBase SequenceNodal ProteinPleurodelesProteinsEpidermisAvian ProteinsEyeWnt3 ProteinMSX1 Transcription FactorSpinal CordCloning, MolecularSpineTransplantsCell MovementBlastodermVertebratesMorpholinosEye ProteinsRNA, MessengerMicroinjectionsNeural Tube DefectsDNA, ComplementaryChordomaRepressor ProteinsPAX2 Transcription FactorMutation