Egfrf3/Egfrt2 wings have a gap in L4 wing vein. Vein gap can be rescued by one copy of sev::tor13D.hs.sev. Ectopic expression also causes extra vein phenotype, notably around the distal end of L2 and broadening or deltas at the distal tips of most of the veins.
In a sev14 background, flies carrying one copy of sev::tor13D.hs.sev have rough eyes with 99% of the ommatidia having multiple R7 cells. Number of R7 cells per ommatidium is 3.8 +/- 1.0 (n=128). sev::tor13D.hs.sev; drkR1/+ flies have 33% of ommatidia with multiple R7 cells as opposed to 99% for sev::tor13D.hs.sev flies.