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Background Clubroot, caused by Plasmodiophora brassicae Woronin, is a very important disease of Brassica species. Management of clubroot relies heavily on genetic resistance. In a cross of Brassica nigra lines PI 219576 (highly resistant, R) × CR2748 (highly susceptible, S) to clubroot, all F1 plants were resistant to clubroot. There was a 1:1 ratio of R:S in the BC1 and 3R:1S in the F2, which indicated...
Background The protist Plasmodiophora brassicae is a biotrophic soil-borne pathogen that causes clubroot on Brassica crops worldwide. Clubroot disease is a serious threat to the 8 M ha of canola ( Brassica napus ) grown annually in western Canada. While host resistance is the key to clubroot management, sources of resistance are limited. Results ...
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