is viable when hemi- or homozygous. Compared with wild-type, homo- or hemizygous Df(1)Exel9051
mutant larvae exhibit neuromuscular junction (NMJ) undergrowth.
Under dim light conditions, the distance travelled by mutant third instar larvae in one minute at 20-22[o]C is not significantly different from wild type. The frequency of peristaltic contractions under these conditions is normal in the mutant larvae. However, under bright light at 27-30[o]C (stress conditions) the mutant larvae travel significantly less far than wild type in one minute. Under these conditions, the frequency of peristaltic contractions is reduced in the mutant larvae compared to wild type.
The olfactory receptor neurons of Df(1)Exel9051
mutant flies do not show any overt phenotype, either in uninjured flies or in flies in which the antennae have been surgically ablated.