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Genetic Dissection Of Disease Resistance To The Blue Mold Pathogen, Peronospora Tabacina, In Tobacco, Xia Wu, Dandan Li, Yinguang Bao, David Zaitlin, Robert D. Miller, Shengming Yang
Genetic Dissection Of Disease Resistance To The Blue Mold Pathogen, Peronospora Tabacina, In Tobacco, Xia Wu, Dandan Li, Yinguang Bao, David Zaitlin, Robert D. Miller, Shengming Yang
Plant and Soil Sciences Faculty Publications
Tobacco blue mold, caused by the obligately biotrophic oomycete pathogen Peronospora tabacina D.B. Adam, is a major foliar disease that results in significant losses in tobacco-growing areas. Natural resistance to P. tabacina has not been identified in any variety of common tobacco. Complete resistance, conferred by RBM1, was found in N. debneyi and was transferred into cultivated tobacco by crossing. In the present study, we characterized the RBM1-mediated resistance to blue mold in tobacco and show that the hypersensitive response (HR) plays an important role in the host defense reactions. Genetic mapping indicated that the disease resistance …