Race status, sources of resistance and mechanisms of resistance to Peronospora parasitica, a major threat to oilseed Brassica production in Australia.

通过成功地鉴定对青霉病菌小种的抗性机制和分子特征，以及鉴定对这些小种的寄主抗性来源，育种者将首次能够培育出对整个澳大利亚南部发生的青霉病菌小种具有全谱抗性的品种。好处包括防止油菜霜霉病的严重损失，以及更可行和更可持续的生产，减少对杀菌剂的依赖。这项研究涉及国家研究优先事项“一个环境可持续发展的澳大利亚”和“改造现有产业”的优先目标，并将特别惠及澳大利亚南部农村社区。

Through successful identification of mechanisms and molecular characterisation of resistance to Peronospora parasitica races and the identification of sources of host resistance against these races, breeders, for the first time, will be able to develop cultivars with resistance against the full spectrum of P. parasitica races occurring across southern Australia. Benefits include prevention of severe losses in canola from downy mildew, and more viable and sustainable production with less reliance upon fungicides. This research addresses the National Research Priority 'An Environmentally Sustainable Australia' and the Priority Goal of 'Transforming existing industries', and will particularly benefit southern Australian rural communities.