Although adults die within 1-4 days after eclosion , more than half of the mutant embryos develop and survive to the adult stage. Females lay no eggs. Mutants rarely fly and never jump, but they do show grooming behavior. When placed under a strong light or in the presence of a chemical odorant, they quickly respond and move vigorously. Upon hatching, wild-type larvae elongate a significant amount during the process of escaping from the egg shell, but mutant larvae do not elongate.
Mutant larvae have uncoordinated locomotion.
Mutant larvae rarely move in a straight line and frequently move backward in response to stimuli that normally causes forward locomotion. On occasion, mutant flies exhibit body and wing tremors while either standing or walking. Neural circuits of mutants show unusually frequent bursting activity, rarely observed in wild-type flies. 93213498 Hoshino, M., et al. Hikaru genki protein is secreted into synaptic clefts from an early stage of synapse formation in Drosophila.