Construct: The ro enhancer fragment has been introduced downstream of the sca open reading frame.
visible
eye
ommatidium
photoreceptor cell R8
Flies show a rough eye phenotype with oversized, fused and irregluarly spaced ommatidia. Precluster and R8 spacing are abnormal in developing ommatidia.
scahs.roE has eye phenotype, enhanceable by MadB1