A 1.6kb Gr98d promoter fragment is fused upstream of sequence encoding a GAL4 driver.
ScerGAL4Gr98d.1.6 is expressed in gustatory neurons of 6 of the bitter-sensitive short labellar taste bristles.
ScerGAL4Gr98d.1.6 is expressed in some of the short bitter-sensitive sensilla of the labellum.