In this study, 75 cultivars highly resistant to tan spot were identified. A positive correlation (r = 0.864; P = 0.001) was found between seedling resistance and adult plant resistance. Inheritance of tan spot resistance was found to be qualitative goverened by single major genes. Three novel resistance genes: tsn3, tsn4 and tsn5 were identified and located on chromosomes 3D, 3A and 3B, respectively. Linkage analysis using SSR markers showed that both the tsn3 (tsn3a, Tsn3b and tsn3c) and tsn4 genes are clustered in the region around Xgwm2a on the short arm of chromosome 3D and 3A, respectively.
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In this study, 75 cultivars highly resistant to tan spot were identified. A positive correlation (r = 0.864; P = 0.001) was found between seedling resistance and adult plant resistance. Inheritance of tan spot resistance was found to be qualitative goverened by single major genes. Three novel resistance genes: tsn3, tsn4 and tsn5 were identified and located on chromosomes 3D, 3A and 3B, respectively. Linkage analysis using SSR markers showed that both the tsn3 (tsn3a, Tsn3b and tsn3c) and tsn4...
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