Carries a deletion in the A-rich sequences (ARS) in the osk 3'UTR. Both of the putative polyadenylation signals are left intact.
osk3'UTR.ΔAR-a.UASp fails to rescue oskA87/Df(3R)p-XT103
Expression of osk3'UTR.ΔAR-a.Scer\UAS.P\T driven by a combination of Scer\GAL4nos.UTR.T:Hsim\VP16 and Scer\GAL4mat.αTub67C.T:Hsim\VP16 fails to rescue the egg-less phenotype of oskA87/Df(3R)p-XT103 females and egg chambers do not develop beyond stage 7.