We induced the EGFR-Pcn tumor model (with ap-Gal4, an epithelial cell-specific driver) together with CD8:GFP, a membrane-tethered GFP protein (Fig 1C and 1D), and independently expressed membrane-tethered mCherry in the myoblasts (with 1151-lexA, lexO-mCherry-CAAX; a myoblast-specific driver). The gene discussed is DHCR7-DT; the disease is neoplasm.