Bacterial spot, an important disease of bell and chili peppers grown in Oklahoma, is caused by . We evaluated isolates from 1995 to 2015 ( = 72) for avirulence alleles and race by assessing hypersensitive responses (HRs) on differentials with resistance genes , , , or . Most isolates (96%) expressed (races 1, 3, 7, 8), and only three were virulent on (race 6).
View Article and Find Full Text PDFBlackleg, caused by the fungus , is a widespread disease of winter canola () in Oklahoma and Kansas. Deployment of genetic resistance is the primary strategy for managing blackleg. Resistance genes () in canola interact with avirulence genes in the fungus () in a gene-for-gene manner.
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