|Zhonghua, Wang - Zhejiang University|
Submitted to: Phytopathology
Publication Type: Abstract Only
Publication Acceptance Date: 7/27/2002
Publication Date: 9/11/2002
Citation: Jia, Y., Zhonghua, W., Singh, P., Fjellstrom, R.G., Correll, J., Lee, F.N., Eizenga, G.C., Gealy, D.R., Gibbons, J., Moldenhauer, K.A., Rutger, N., McClung, A., Marchetti, T. 2002. Opportunities for the development of rice blast resistant cultivars/germplasm [abstract]. Proceedings of the Third International Rice Blast Conference. p. 116.
Technical Abstract: Rice blast is the most serious rice disease in the USA. Both conventional and novel strategies for the development of resistant rice cultivars/germplasm have been employed in the U.S. rice breeding programs. The objectives are to develop molecular markers for stacking major resistance genes into improved germplasm and to develop novel strategies for engineering durable resistance to rice blast fungus Magnaporthe grisea. Dominant markers using cloned blast resistance genes Pi-ta and Pi-b have been developed for rice breeders to use in marker assisted selection. Co-dominant microsatellite markers have been developed to stack resistance genes in improved rice germplasm and for fine mapping the Pi-ta locus. Progress in dissecting molecular mechanisms of blast resistance using a combination of genetic, pathological and molecular approaches will be presented.