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Confirmation of introgression line R gene content though transgenic complementation of avirulence determinants. Cotyledon reactions of susceptible B. napus line Topas DH16516 and five ILs challenged with two native L. maculans isolates (3R11 & 2367) and six transgenic isolates carrying additional Avr gene constructs. Cotyledons shown at 14 days post-infection.
