Submitted to: Book Chapter
Publication Type: Book / Chapter
Publication Acceptance Date: 6/15/2003
Publication Date: 1/1/2004
Citation: Curley, J., Sim, S.C., Jung, G., Leong, S.A., Warnke, S.E., Barker, R.E. 2004. QTL mapping of gray leaf spot resistance in ryegrass, and synteny-based comparison with rice blast resistance genes in rice. In:Hopkins, A., Wang, Z.Y., Mian, R., Sledge, M., Barker, R., editors. Molecular Breeding of Forage and Turf. Dordrecht/Boston/London: Kluwer Academic Publishers. p. 37-46.
Technical Abstract: Grey leaf spot caused by Magnaporthe grisea is a disease of increasing importance in the United States and Japan where perennial rye grass is used in turf. Currently, disease resistant varieties are not available and fungicide treatment is required to control the disease. The disease occurs in a sporadic but catastrophic manner, destroying whole fairways with a few days when environmental conditions are condusive. In order to breed new varieties of turf grass with resistance to this disease, genetic studies of resistance were conducted in crosses of perennial rye and winter rye. The location of regions of the rye genome that contribute to disease resistance was defined. This is the first step toward development of disease resistant varieties of perennial rye.