UASt regulatory elements drive expression of a pcs hairpin double-stranded RNA, corresponding to full-length pcs cDNA with a 500bp Avic\GFP linker to separate the pcs strands.
Expression of pcsdsRNA.Scer\UAS under the control of both Scer\GAL4twi.PB and Scer\GAL4Mef2.PR results in embryonic muscle loss and defects in muscle morphogenesis. The specification of founder competent myoblasts is not affected.
Transcription from the P{UAS-pcs.dsRNA} construct should produce pcs dsRNA, resulting in dsRNA interference (RNAi) of the pcs gene.