Expression of Zzzz\Nvec-yapS83A.Scer\UAS under the control of Scer\GAL4GMR.PU results in eye overgrowth that is stronger than in Zzzz\Nvec-yapScer\UAS.cIa. Ectopic proliferation is seen in the eye disc, resulting in extra bristles and inter-ommatidial cells in the adult eyes.