Neural CrestChick EmbryoEmbryo, NonmammalianEmbryo, MammalianCoturnixBranchial RegionGene Expression Regulation, DevelopmentalQuailSOXE Transcription FactorsCell MovementSkullIn Situ HybridizationRhombencephalonZebrafishBody PatterningZebrafish ProteinsEctodermMelanocytesMorphogenesisMesodermEmbryonic DevelopmentEmbryo ImplantationXenopus ProteinsCell DifferentiationCraniofacial AbnormalitiesEmbryonic InductionCell LineageBlastocystEmbryonic and Fetal DevelopmentTranscription FactorsBone Morphogenetic ProteinsNeural TubeCREST SyndromeNervous SystemEnteric Nervous SystemHomeodomain ProteinsHeadSomitesJawXenopusEmbryo LossPaired Box Transcription FactorsAntigens, CD57Avian ProteinsChimeraGastrulaSignal TransductionWnt ProteinsXenopus laevisTissue TransplantationImmunohistochemistryGangliaHigh Mobility Group ProteinsHirschsprung DiseaseNeural PlatePeripheral Nervous SystemWnt1 ProteinPregnancyHeartFertilization in VitroMesencephalonBone Morphogenetic Protein 4Culture TechniquesDNA-Binding ProteinsIliumCarbocyaninesCardiovascular AbnormalitiesCranial NervesTranscription Factor AP-2Cleavage Stage, OvumMolecular Sequence DataBlastomeresMSX1 Transcription FactorMicroinjectionsCentral Nervous SystemEarly Growth Response Protein 2Animals, Genetically ModifiedMice, TransgenicFibroblast Growth Factor 8CartilageMutationNeurulationPhenotypeZygoteGastrulationSOX9 Transcription FactorGenes, HomeoboxMorpholinosTime FactorsNeurogliaEndodermNeuronsStem CellsVertebratesNotochordMelanophoresNerve Tissue ProteinsRNA, MessengerBase SequenceMice, Mutant Strains