Adrenal MedullaNeural PlateNeural TubeMedulla OblongataNeural CrestNervous SystemNeurulationEctodermKidney MedullaGene Expression Regulation, DevelopmentalEmbryonic InductionChick EmbryoXenopus ProteinsBody PatterningNotochordIn Situ HybridizationCentral Nervous SystemGastrulaEmbryo, NonmammalianHomeodomain ProteinsMorphogenesisRhombencephalonAnencephalyBone Morphogenetic ProteinsZebrafish ProteinsGrowth PlateMesodermZebrafishQuailProsencephalonBone PlatesXenopusXenopus laevisPaired Box Transcription FactorsSpinal DysraphismEmbryonic StructuresTranscription FactorsHedgehog ProteinsOtx Transcription FactorsNeural Tube DefectsSomitesTissue TransplantationNerve Tissue ProteinsCoturnixPollen TubeWnt ProteinsDiencephalonBone Morphogenetic Protein 4GastrulationMesencephalonFibroblast Growth Factor 8Cell DifferentiationMolecular Sequence DataGenes, HomeoboxSignal TransductionSOXB1 Transcription FactorsTelencephalonFolic AcidSpinal CordEmbryonic and Fetal DevelopmentAvian ProteinsHMGB ProteinsEmbryo, MammalianFibroblast Growth FactorsEmbryonic DevelopmentWnt3 ProteinChordata, NonvertebrateNeuronsMSX1 Transcription FactorSpina Bifida OccultaTrans-ActivatorsAmino Acid SequenceOrganizers, EmbryonicDNA-Binding ProteinsCell MovementHeadUrochordataCiona intestinalisPregnancyMicroinjectionsGerm LayersFallopian TubesEndodermEyeNeuroepithelial CellsProteinsBase SequenceImmunohistochemistrySequence Homology, Amino AcidCell LineageRNA, MessengerPAX2 Transcription FactorEye ProteinsAnimals, Genetically ModifiedEpidermisEncephaloceleCulture TechniquesBasic Helix-Loop-Helix Transcription FactorsMeningomyeloceleTransplants