ommatidium (with pntΔ88)
photoreceptor cell R7 (with pntΔ88)
pntΔ88/pntT6 combination is viable, 25% ommatidia are missing R7 cells.
pntT6/pntΔ88 has ommatidium phenotype, enhanceable by pros[+]/prosJO1
pntΔ88/pntT6 phenotype is dominantly enhanced by prosJO1, leading to roughening of the external eye.