MesodermNeural TubeGene Expression Regulation, DevelopmentalBody PatterningEmbryonic InductionChick EmbryoSomitesGastrulaEctodermNeurulationNeural CrestIn Situ HybridizationNervous SystemEmbryo, NonmammalianAnencephalyMorphogenesisXenopus ProteinsQuailCentral Nervous SystemSpinal DysraphismFetal ProteinsCoturnixHomeodomain ProteinsZebrafish ProteinsNotochordZebrafishBone Morphogenetic ProteinsTranscription FactorsT-Box Domain ProteinsPollen TubeXenopusEmbryo, MammalianEmbryonic and Fetal DevelopmentHedgehog ProteinsGastrulationCell DifferentiationNeural Tube DefectsRhombencephalonGenes, HomeoboxFolic AcidXenopus laevisBone Morphogenetic Protein 4Embryonic DevelopmentSignal TransductionNodal ProteinPaired Box Transcription FactorsWnt ProteinsTissue TransplantationAvian ProteinsActivinsMolecular Sequence DataSpina Bifida OccultaTailFibroblast Growth FactorsGoosecoid ProteinPregnancyDNA-Binding ProteinsFibroblast Growth Factor 8Cell MovementTrans-ActivatorsFallopian TubesNeural PlateWnt3 ProteinCell LineageExtremitiesBasic Helix-Loop-Helix Transcription FactorsLimb BudsBranchial RegionWnt1 ProteinHeadTwist Transcription FactorEncephaloceleDrosophilaMeningomyeloceleBase SequenceAmino Acid SequenceProteinsCulture TechniquesChimeraEustachian TubeDrosophila ProteinsNodal Signaling LigandsMice, Mutant StrainsSpina Bifida CysticaMutationChest TubesStem CellsSpinal CordAnimals, Genetically ModifiedVertebratesNerve Tissue ProteinsHeartPhenotypeCranial NervesPrimitive StreakRNA, MessengerVitamin B ComplexGerm LayersImmunohistochemistryMyogenic Regulatory Factor 5