Neural TubeNeural PlateNeural CrestNervous SystemChick EmbryoEctodermGene Expression Regulation, DevelopmentalEmbryonic InductionNotochordBody PatterningBone Morphogenetic ProteinsIn Situ HybridizationNeurulationCoturnixCentral Nervous SystemZebrafish ProteinsSomitesPaired Box Transcription FactorsMesodermWnt3 ProteinWnt ProteinsHedgehog ProteinsXenopus ProteinsBone Morphogenetic Protein 4Wnt1 ProteinHomeodomain ProteinsMorphogenesisZebrafishTranscription FactorsGastrulaEmbryo, NonmammalianFetal Tissue TransplantationRhombencephalonAnencephalySignal TransductionGrowth PlateNerve Tissue ProteinsCell DifferentiationCell MovementQuailSpinal CordProsencephalonBone PlatesrhoB GTP-Binding ProteinXenopusTrans-ActivatorsCulture TechniquesXenopus laevisSpinal DysraphismEmbryonic StructuresProteinsMolecular Sequence DataOtx Transcription FactorsNeural Tube DefectsTissue TransplantationDNA-Binding ProteinsPollen TubeDiencephalonNeuronsGastrulationFibroblast Growth Factor 8MesencephalonGenes, HomeoboxSOXB1 Transcription FactorsFolic AcidTelencephalonAvian ProteinsTime FactorsEmbryonic and Fetal DevelopmentMice, TransgenicHMGB ProteinsModels, BiologicalEmbryo, MammalianFibroblast Growth FactorsEmbryonic DevelopmentProto-Oncogene ProteinsChordata, NonvertebrateMSX1 Transcription FactorSpina Bifida OccultaOrganizers, EmbryonicHeadUrochordataAmino Acid SequenceCiona intestinalisGerm LayersFallopian TubesEndodermPregnancyNeuroepithelial CellsEyeCell LineagePAX2 Transcription FactorSequence Homology, Amino AcidEye ProteinsBase SequenceMusclesEpidermisEncephaloceleBasic Helix-Loop-Helix Transcription FactorsAnimals, Genetically Modified