UASt regulatory sequences drive expression of an inverted repeat.
Flies expressing FicKK101120 under the control of Scer\GAL4da.G32 are not attracted to the light source in phototaxis assays.
Electroretinograms show that flies expressing FicKK101120 under the control of Scer\GAL4da.G32 undergo normal light-induced depolarisation. However, they lack the ON transient, which reflects synaptic activation of the postsynaptic laminar neurons.
Flies expressing FicKK101120 in photoreceptors under the control of Scer\GAL4GMR.PF exhibit the normal ON transient seen in the electroretinograms of wild type flies. Phototaxis appears normal in these flies.
Flies expressing FicKK101120 in glial cells under the control of Scer\GAL4repo lack the ON transients seen in the electroretinograms of wild type flies. The flies are not attracted to the light source in phototaxis assays.