Identification of resistant sources against <Emphasis Type="Italic">Sclerotinia sclerotiorum</Emphasis> in <Emphasis Type="Italic">Brassica</Emphasis> species with emphasis on <Emphasis Type="Italic">B. oleracea</Emphasis> |
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| Authors: | J Mei L Qian J O Disi X Yang Q Li J Li M Frauen D Cai W Qian |
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| Institution: | (1) College of Agronomy and Biotechnology, Southwest University, Chongqing, 400716, China;(2) Norddeutsche Pflanzenzucht Hans-Georg Lembke KG, 24363 Hohenlieth, Germany;(3) Department of Molecular Phytopathology, Christian-Albrechts-University of Kiel, Hermann Rodewaldstr. 9, 24118 Kiel, Germany; |
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| Abstract: | Stem rot caused by Sclerotinia sclerotiorum is one of the most devastating diseases of rapeseed (Brassica napus L.) which causes huge loss in rapeseed production. Genetic sources with high level of resistance has not been found in rapeseed.
In this study, 68 accessions in six Brassica species, including 47 accessions of B. oleracea, were evaluated for leaf and stem resistance to S. sclerotiorum. Large variation of resistance was found in Brassica, with maximum differences of 5- and 57-folds in leaf and stem resistance respectively. B. oleracea, especially its wild types such as B. rupestris, B. incana, B. insularis, and B. villosa showed high level of resistance. Our data suggest that wild types of B. oleracea possess tremendous potential for improving S. sclerotiorum resistance of rapeseed. |
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