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avirulence gene

Catalogue: GRDC Final Reports
The project has focused on monitoring blackleg populations for virulence by exploiting markers for avirulence (Avr) genes in the fungus, which are complementary to resistance (Rlm) genes in the plant... Selection pressure acting on one avirulence gene can also influence other avirulence genes that are closely linked... Only two genes (LmCys2 and AvrLm6) have mutations in attacking isolates and are considered candidate genes...
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Catalogue: GRDC Final Reports
" Monitoring populations of the blackleg fungus to develop strategies for deployment of resistance genes in oilseed Brassicas UM00021 Start Date: 01/07/2004.. The frequency of virulent isolates increases rapidly resulting in this resistance being overcome... Sprague SJ, Hayden HL, Brun H, Marcroft SJ, Pinochet X, Rouxel T, Balesdent MH, Howlett BJ (2006) Major gene resistance in Brassica napus (oilseed rape) is overcome by changes in virulence of populations of Leptosphaeria maculans in France and Australia...
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