Neural CrestCoturnixBranchial RegionChick EmbryoQuailSOXE Transcription FactorsCell MovementGene Expression Regulation, DevelopmentalSkullRhombencephalonMelanocytesIn Situ HybridizationEmbryo, NonmammalianBody PatterningZebrafish ProteinsCraniofacial AbnormalitiesEctodermZebrafishMorphogenesisMesodermXenopus ProteinsCell DifferentiationCREST SyndromeCell LineageEnteric Nervous SystemEmbryonic InductionNeural TubeBone Morphogenetic Proteins