Enteric Nervous SystemNeurogliaDrosophilaDrosophila ProteinsDrosophila melanogasterHirschsprung DiseaseMyenteric PlexusSubmucous PlexusCentral Nervous SystemNervous SystemNeural CrestProto-Oncogene Proteins c-retNeuronsGastrointestinal TractPeripheral Nervous SystemGastrointestinal MotilityDigestive SystemGlial Cell Line-Derived Neurotrophic Factor ReceptorsGene Expression Regulation, DevelopmentalSOXE Transcription FactorsAnimals, Genetically ModifiedGlial Cell Line-Derived Neurotrophic FactorEndothelin-3Embryo, NonmammalianImmunohistochemistryInsect ProteinsMutationLarvaMolecular Sequence DataGangliaNerve Tissue ProteinsIntestinesBrainIn Situ HybridizationWingTranscription FactorsColonQuailPhenotypeNerve Growth FactorsStem CellsSignal TransductionIleumCell MovementBody PatterningCell DifferentiationAmino Acid SequenceBase SequenceCentral Nervous System DiseasesPhotoreceptor Cells, InvertebrateReceptor Protein-Tyrosine KinasesDigestive System Physiological PhenomenaVasoactive Intestinal PeptideCells, CulturedPupaMegacolonSerotonin 5-HT4 Receptor AgonistsMorphogenesisRNA, MessengerIntestine, SmallNeuropeptidesHomeodomain ProteinsInsect HormonesPeristalsisNeurofilament ProteinsEyeGuinea PigsVagus NerveNeurogenesisInterstitial Cells of CajalChick EmbryoHigh Mobility Group ProteinsAstrocytesMice, TransgenicIntestinal Pseudo-ObstructionAxonsNeurturinSequence Homology, Amino AcidNeurotransmitter AgentsGenome, InsectCell CountMice, Inbred C57BLRats, Sprague-DawleyDNA-Binding ProteinsCell LineageDisease Models, AnimalJejunumGene ExpressionTime FactorsIleusNervous System Physiological PhenomenaRetinaCeliac PlexusIntestine, LargeNitrergic NeuronsManducaCrosses, GeneticCentral Nervous System NeoplasmsUbiquitin ThiolesteraseCloning, Molecular