Abnormal olfactory behaviour, but recovery kinetic is not significantly delayed. No EAG defect.
Photoreceptors R7 and R8 are preserved in almost every ommatidium in 7 day old mutant flies. No retinal degeneration is seen in 5 day old flies kept in darkness at 18oC.
The retinal degeneration phenotype is not inhibited by norpA56.
Alleles can be ranked with respect to how much R7 and R8 are affected in each mutant; rdgB5 > rdgB7 > rdgB6 = rdgB8 > rdgB1 = rdgB9.