Like l4; fails to convert protochlorophyllide to chlorophyllide. Genetic 2005 6 coordinates determined from these recombination and map data: T6-9e(6) l10 l12 y1 ms1 si1 T6-9(043-1)(6); l10 -0.6- si1; l10 -8- l15; l12 -1- l10; y1 -2- l10; w15 -3.8- l10; see MaizeGDB ID:112149; 935789; 935784; 935783; 935779; 9017400. This gene was originally curated in MaizeGDB Database and the map position was displayed on the maize bins map if feasible.