Late blight resistance from wild potato species

Late blight (Phytophthora infestans) is a major disease affecting the potato that destroyed approximately $3.5 billion of the crop in the United States in 2009. It’s been around for a while. It destroyed significant portions of the Irish potato harvest during the 1840s, helping to trigger the Irish Potato Famine. Luckily, wild potato species, including Solanum demissum, S. bulbocastanum, S. stoloniferum, and S. verrucosum, have proven to be a rich source of resistance genes. [i]

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