Figure 2

DmPpt1 over-expressing eyes undergo apoptotic cell death. A-C, Transmission electron micrographs. A, UAS:DmPpt1^8.1/CyO control showing normal ommatidial structure. Scale bar = 2 μm. B, An image of GMR:Gal4/UAS:DmPpt1^8.1 over-expression ommatidium showing individual degenerating photoreceptors (labeled with an asterisk). Scale bar = 1 μm. C, An image of GMR:Gal4/UAS:DmPpt1^2.1over-expression ommatidium showing all photoreceptor undergoing cell death with no rhabdomeres present. Scale bar = 1 μm. D, Scanning electron micrograph (200×) of a GMR:Gal4, UAS:DmPpt1^8.1/+; UAS:DmPpt1^2.1/+ eye. E, Scanning electron micrograph (200×) of a GMR:Gal4, UAS:DmPpt1^8.1/pGMR:p35 ; UAS:DmPpt1^2.1/+ eye.