UASt regulatory sequences drive expression of an inverted repeat.
Scer\GAL4tub.PU-mediated expression has no effect on development and normal fertile flies emerge.
Scer\GAL4Act5C.PI-mediated expression, in the presence of P{UAS-Dcr-2.D}, results in lethality - less than 20% of flies hatch, and these only live for a few days, are infertile, and females show necrotic spots in the abdominal segments.
Adults expressing Rif1GD9990 under the control of Scer\GAL4elav.PLu (in the presence of Dcr-2Scer\UAS.cDa to increase the efficiency of RNAi) do not show a significant defect in avoidance of noxious temperature (46[o]C) compared to control flies.