rhIs13 [unc-119::GFP + dpy-20(+)]. RNAi hypersensitive, effective RNAi in the nervous system. unc-119::GFP in neurons is almost completely suppressed on anti-GFP RNAi plates. Reduced progeny at 25C (almost sterile). nre-1(hd20) and lin-15B(hd126) seem very closely linked. Maintain at 15C or 20C.