The invention relates to the technical field of
plant gene engineering, and provides a corn nicosulfuron anti-infection
molecular marker. The marker is positioned on an nsfy
gene of a corn No.5
chromosome; through the application of the
molecular marker, whether a corn nicosulfuron sensitive and resistant
gene is contained in a maize variety or
selfing system or not can be detected for accelerating the breeding process of the corn nicosulfuron resistant variety. The special corn nicosulfuron sensitive and resistant
molecular marker is used, so that the screening is fast and precise; the environment influence is avoided; the selection target is clear; the production cost is reduced; the selection efficiency and the quality of the corn nicosulfuron resistant variety or variety
system are greatly improved.