Basic Helix-Loop-Helix Transcription FactorsSense OrgansGenes, InsectDrosophilaNervous SystemDrosophila ProteinsGene ComponentsPeripheral Nervous SystemDrosophila melanogasterTranscription FactorsHelix-Loop-Helix MotifsDrosophilidaeGene Expression Regulation, DevelopmentalDNA-Binding ProteinsThoraxWingInsect ProteinsIn Situ HybridizationMorphogenesisPhenotypeBlastodermMolecular Sequence DataGene Expression RegulationMutationBase SequenceExtremitiesBody PatterningImmunohistochemistryAnimals, Genetically ModifiedGenes, LethalRepressor ProteinsGenes, Regulator