The FRT cassette has been excised, juxtaposing the sev enhancers and heat shock promoter with the fz coding sequences.
Expression of fz1-1-1.hs.2sev in an otherwise wild-type background does not result in a dominant fz phenotype in the eye.
fz1-1-1.hs.2sev rescues fz37/fz15
Significantly rescues the tissue polarity defect seen in fz37/fz15 eyes, such that 86.0 +/- 5.1 % of ommatidia have the correct chiral shape.