Neural TubeNeurulationAnencephalyNeural CrestNotochordNervous SystemChick EmbryoCentral Nervous SystemGene Expression Regulation, DevelopmentalBody PatterningSpinal DysraphismPollen TubeIn Situ HybridizationNeural Tube DefectsMorphogenesisHedgehog ProteinsRhombencephalonQuailFolic AcidEmbryonic InductionEmbryo, NonmammalianEctodermMesodermSpina Bifida OccultaCoturnixSomitesEmbryo, MammalianHomeodomain ProteinsEncephalocelePregnancyZebrafish ProteinsZebrafishPaired Box Transcription FactorsFallopian TubesNerve Tissue ProteinsTranscription FactorsGranuloma, Lethal MidlineSpinal CordEmbryonic and Fetal DevelopmentMeningomyeloceleCell DifferentiationEustachian TubeAxonsMidline Thalamic NucleiEmbryonic DevelopmentSpina Bifida CysticaChest TubesHoloprosencephalyMesencephalonDiencephalonGastrulaNeural PlateSignal TransductionCell MovementBone Morphogenetic ProteinsMolecular Sequence DataAvian ProteinsVitamin B ComplexTissue TransplantationMutationXenopus ProteinsNeuronsPreconception CareMice, Mutant StrainsDrosophila ProteinsProsencephalonCranial NervesDNA-Binding ProteinsWnt1 ProteinCongenital AbnormalitiesWnt3 ProteinDrosophilaCell FusionPhenotypeImmunohistochemistryWnt ProteinsTrans-ActivatorsPrenatal DiagnosisCulture TechniquesSkullOptic ChiasmNeuroepithelial CellsAnimals, Genetically ModifiedTailCraniofacial AbnormalitiesMembrane ProteinsChimeraMembrane FusionFibroblast Growth Factor 8Basic Helix-Loop-Helix Transcription FactorsTime FactorsAmino Acid SequenceTelencephalonProteinsGenes, HomeoboxCell PolarityBase SequenceFood, FortifiedStem CellsLIM-Homeodomain Proteins