Third instar larval class IV abdominal dorsal multidendritic ddaC neurons expressing ImpSD.Scer\UAS under the control of Scer\GAL4ppk.PG present a significant increase in the number of dendrite branch terminals, as compared to controls; expression under the control of Scer\GAL4221 results in no obvious dendrite morphology defects in class I abdominal dorsal multidendritic ddaD and ddaE neurons, as compared to controls.
Expression of ImpSD.Scer\UAS under the control of Scer\GAL4mat.αTub67C.T:Hsim\VP16 results in a fused dorsal appendage phenotype and the animals fail to hatch (the penetrance of this phenotype varies from 29% to 47%).
Expression of ImpSD.Scer\UAS under the control of Scer\GAL4elav.PU has no effect on synaptic terminal size at the larval neuromuscular junction.