Fig. 3

Suppression of GMR-hairpin mediated silencing of white by DCV-1A, CrPV-1A, or FHV-B2. (A) Far left, (1) Eye pigmentation of GMR-GAL4; UAS-GFP flies (VK1). (2) Eye color observed in flies with GMR-whiteIR; GMR-GAL4; UAS-GFP transgenes (VK1). (3) Suppression of white silencing mediated by DCV-1A expressed from the VK1 landing site with flanking gypsy insulators. (4–5) Lack of white silencing inhibition by FHV-B2 expressed from the VK1 or attP18 landing sites with flanking gypsy insulators. (6) Suppression of white silencing by CrPV-1A expressed from the attP18 landing site with flanking gypsy insulators. Eye pigment levels were measured in three separate experiments using age-matched 4-day-old adults, and are expressed as a percentage relative to the pigment levels measured in the GMR-GAL4; UAS-GFP (VK1) controls. Error bars represent standard error. Significance was calculated by Student’s t-test.