Gene pyramids and the balancing act of keeping pests at bay

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2019-09-15
Authors
Macintosh, Gustavo
Macintosh, Gustavo
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Biochemistry, Biophysics and Molecular Biology, Roy J. Carver Department of
Abstract

Pyramiding R genes is a common strategy used by breeders to enhance resistance and increase durability of resistance in crops. However, the molecular mechanisms that mediate R gene interactions are not known. Kamphuis et al. (2019) analyzed Medicago truncatula plants carrying two genes that confer resistance to bluegreen aphids. They identified a potential phytohormone crosstalk triggered by the combined R gene action in response to aphid feeding that enhances resistance and minimizes R gene-associated fitness costs to the plant.

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This article is published as MacIntosh, Gustavo C. "Gene pyramids and the balancing act of keeping pests at bay." Journal of experimental botany 70, no. 18 (2019): 4591-4593. doi: 10.1093/jxb/erz216.

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