Generating broad and stable resistance to gemini- and nanoviruses

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The ssDNA geminiviruses and nanoviruses are considered a major threat to crop production in the tropics and subtropics. There are currently no effective control strategies for these viruses. We have been developing a novel transgenic strategy for generating resistance to ssDNA viruses based on the activation of a suicide gene in the presence of the viral Rep protein. Importantly, we have demonstrated proof-of-principle using Tobacco yellow dwarf mastrevirus. In this project, we aim to further develop this strategy into a broad and stable mechanism for generating resistance to all known geminiviruses and nanoviruses.