Animals that express Set2dsRNA.Scer\UAS under the control of Scer\GAL4da.G32 develop normally until the end of the third larval instar. However, these larvae fail to form their puparium and crawling larvae are still found after 10-12 days. The larvae finally stop moving, and in a few cases melanin-less "pseudo-prepupae" are formed, which maintain the elongated larval form and fail to evert the anterior spiracles. Feeding these larvae with 20-hydroxyecdysone (20E) does not rescue them to puparium formation.
Expression of Set2dsRNA.Scer\UAS in the wing discs, driven by Scer\GAL4ap-md544, generates a blister in the proximal part of the adult wing. The transparent blisters appear initially as large balloons filled with air and hemolymph and deflate deflate after a while, leaving a scar that may cause the wing to bend up. This phenotype shows 100% penetrance.
Scer\GAL4ap-md544, Set2RNAi.UAS has visible phenotype, enhanceable by EcRM554fs/EcR[+]
Scer\GAL4fkh.PH, Set2RNAi.UAS, p53UAS.A.Tag:MYC has increased cell death phenotype
Scer\GAL4ap-md544, Set2RNAi.UAS has wing phenotype, enhanceable by EcRM554fs/EcR[+]
Scer\GAL4fkh.PH, Set2RNAi.UAS, p53UAS.A.Tag:MYC has salivary gland phenotype
Co-expression of Set2dsRNA.Scer\UAS and p53Scer\UAS.A.T:Hsap\MYC under the control of Scer\GAL4fkh.PH results in small salivary glands and high levels of apoptotic cell death.
Expression of Set2dsRNA.Scer\UAS in the wing discs of EcRM554fs/+ flies, driven by Scer\GAL4ap-md544, causes an enhanced wing phenotype compared to Set2dsRNA.Scer\UAS expression in a wild-type background. The wing layers of Set2dsRNA.Scer\UAS; Scer\GAL4ap-md544; EcRM554fs/+ flies are completely separated and the resulting balloon becomes blackened and remains inflated for 1-2 days. Often both wings are held in a "Dichaete-like" fashion.
Transcription from the P{UAS-Set2.IR} construct should produce Set2 dsRNA, resulting in dsRNA interference (RNAi) of the Set2 gene.