Fig. 1. Amplification by primer OPG04 of six DNA bulks, each composed of equimolar amounts of the DNAs of 10 plants of each variety. Arrows indicate cultivar-specific bands. Lane 1, line b92.73.2.13; Lane 2, Fibrimon; Lane 3, Fibranova; Lane 4, Northern Lights; Lane 5, Carmagnola; Lane 6, CS.