Breeding for resistance to bymoviruses in Poaceae with special consideration for the barley yellow mosiac virus complex

Abstract

Bymoviruses, ie BaYMV, WYMV, WSSMV, OMV and RNMV, cause serious damages to their host-plants, resulting in high yield losses in susceptible crops. Due to their transmission by the soil-borne fungus Polymyxa graminis, chemical measures against these diseases are neither efficient nor acceptable for economical and ecological reasons. Therefore, breeding resistant varieties is an important aim for plant breeding. Besides classical breeding methods completed by the production of DH-lines and marker-facilitated selection procedures, recombinant DNA-techniques may give way to new strategies in breeding for resistance to bymovirus in Poaceae in the near future. © 1995.