The Hunt for Wheat Rust Resistance

To break the boom-bust cycle of pathogen resistance, wheat breeders are working to find longer-term solutions.

Cultivating single, major resistance genes can completely shield crops from stem rust, but only until the fungus evolves and the plants become vulnerable again — usually three to five years. By focusing on so-called minor genes, scientists hope they can provide longer-term protection for African farmers. (Visual by )

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