The invention relates to nucleic acid molecules which impart resistance to rhizomania, in particular to Beet Necrotic Yellow Vein Virus (BNYVV) in a plant, in particular of the genus Beta, and to plants containing such nucleic acid molecules. The invention further relates to methods for producing such BNYVV resistant plants and to marker-based methods for identifying and selecting BNYVV resistant plants, as well as to methods for controlling infection with the pathogen BNYVV.