UASt regulatory sequences drive expression of a truncated form of rst in which the 309bp sequence encoding the first Ig domain has been deleted.
cone cell, with Scer\GAL4MZ1369
interommatidial bristle, with Scer\GAL4MZ1369
ommatidium, with Scer\GAL4MZ1369
Expression of rstDD1.Scer\UAS in the developing optic lobe and eye disc, driven by Scer\GAL4MZ1369, results in the formation of rough eyes. Eye discs have missing cone cells and occasionally show grossly malformed ommatidia.