Melanotic tumour formation and lethality are due to the same mutation. Mutations exhibit incomplete penetrance and expressivity of the melanotic tumour phenotype. Small and/or abnormally shaped brain. Portion of alimentary canal posterior to the junction between the mid and hind gut is melanized. No visible defects in lymph glands.
l(1)air10[+]/l(1)air101 is a suppressor of visible phenotype of CycEJP
l(1)air10[+]/l(1)air101 is a suppressor of eye phenotype of CycEJP