Small kernel, etched/pitted endosperm; viable. Tendency to germless in some genetic backgrounds, but mutant kernels with embryos give rise to normal, healthy plants (P. Stinard). Genetic 2005 6 coordinates determined from these recombination and map data: TB-6Sa mn3; mn3 TB-6Lc; mn3 -2- y1 -8- l15; mn3 -4- w15 -2- y1; see MaizeGDB ID:165123; 165122; 106044; 106040. This gene was originally curated in MaizeGDB Database and the map position was displayed on the maize bins map if feasible.