Single copy; identified by cDNA hybridization in situ; early expression in male and female inflorescences, differentially in one member of a spikelet-primordium pair. zmm6 is a member of the AGL2 MADS-box subfamily. Expression is limited to developing infloresences and developing kernels. This gene was originally curated in MaizeGDB Database and the map position was displayed on the maize bins map if feasible.