pntΔ88/pnt1277 flies have rough eyes and show a loss of photoreceptor cells.
Many pntΔ88/pnt1277 ommatidia over- or under-rotate; the variance (s.d.) in degree of rotation is greater than in wild type in adult eyes.
pnt1277/pnt1230 eye discs show polarity defects (10% of ommatidial clusters are inverted and 9% are symmetrical).
pnt1277/pntΔ88 eye discs show polarity defects (6.7% of ommatidial clusters are inverted and 6% are symmetrical).
In pnt1277/pntΔ88 mutant adults defects are seen in the eye. Under-recruitment of phtoreceptors is common, though in those ommatidia that are correctly specified, mis-rotations are seen.
90% of the ommatidia in pntΔ88/pnt1277 flies lack the R7 photoreceptor and/or some outer photoreceptor cells.
Viable. Heterozygotes with pntΔ88 lack one to three photoreceptor cells in most ommatidia. The R7 precursor can be rescued by pnt P2 transcript expressed by sev enhancers but the mutant phenotype is enhanced by pntT151A.Scer\UAS expressed by sev enhancers.