Affects cytochrome bf complex. Cytochrome b6/f deficient mutant. Not allelic to hcf2, hcf6, hcf109, hcf111. Similar to hcf6, induced in Mutator background (Cook et al. 1987; Cook and Miles 1988, 1989). Classification: hcf trait, very good. Reduced leaf chlorophyll, very good. Viability: seedling lethal at 3- to 4-leaf stage. (Polacco). Genetic 2005 8 coordinates determined from these recombination and map data: TB-8Lc(8) hcf102; see MaizeGDB ID:106226. This gene was originally curated in MaizeGDB Database and the map position was displayed on the maize bins map if feasible.