(was hcf134) lacks PSII core complex; pale seedling; mutable (Mu-induced). Slightly pale green, deficient in photosystem II (like hcf3). Classification by leaf pigmentation very good. Lethal at 3-4 leaf stage. (Polacco). Genetic 2005 6 coordinates determined from these recombination and map data: TB-6Lc(6) psb1; see MaizeGDB ID:105325. This gene was originally curated in MaizeGDB Database and the map position was displayed on the maize bins map if feasible.