Fig. 3. SdhA mutant R cell synaptic terminals develop normally, and then degenerate. (A-H) Cross sections of the lamina neuropil containing small negatively marked clones in wild-type (A,B,E,F) and SdhA¹¹¹⁰ mosaic (C,D,G,H) animals, at (A-D) 0 days after eclosion, and (E-F) 5 days after eclosion. Homozygous tissue is marked by the absence of GFP (green). Photoreceptor terminals are stained with the synaptic vesicle marker CSP (magenta; A,C,E,G), or the R cell-specific antibody mAb24B10 (red; B,D,F,H). Insets show single cartridges. Scale bar: 10 µm.