UAS regulatory sequences drive expression of an RNAi construct.
Expression of Pkg21DdsRNA.Scer\UAS under the control of Scer\GAL4fkh.PH and Scer\GAL4twi.PB results in salivary gland migration defects.
Embryos expressing Pkg21DdsRNA.Scer\UAS under the simultaneous control of both Scer\GAL4Mef2.PR and Scer\GAL4twi.PB have thinned ventral oblique and ventral acute muscles, and unfused fusion competent myoblasts are seen.
Third instar larvae expressing Pkg21DdsRNA.Scer\UAS under the control of either Scer\GAL4Gyc-89Da.1.9 or Scer\GAL4Gyc-89Db.3.4 show a normal hypoxia escape response; mutant larvae which have been allowed to burrow into the food and commence feeding take the same time as control larvae to leave the food when exposed to low oxygen concentrations.