PITPNM1 and retinal degeneration: The above GMR-DHDDS-RNAi TEM sections (see also Supplementary Figure 3) are exceptional compared to previous TEM sections of mutant flies showing retinal degeneration (e.g., rdgA, rdgB, rdgC, pp100, and cap), which all exhibited a uniform pattern of degeneration of all R1-6 cells at different retinal depths (Iakhine et al., 2004; Leonard et al., 1992; O’Tousa et al., 1989; Rubinstein et al., 1989; Weiss et al., 2012).