UASt regulatory sequences drive expression of an inverted repeat.
Expression under the control of Scer\GAL4Mef2.PR results in missing adult indirect flight muscles.
Expression under the control of Scer\GAL4Mef2.PR results in frayed myofibrils in the adult indirect flight muscles.
Expression under the control of Scer\GAL4Mef2.PR results in sarcomeres that appear to lack M-lines in the adult indirect flight muscles.