Crop engineering: Plant genes tied to the weather.

Coupling a late blight resistance gene to a humidity-responsive element in potato confers disease resistance specifically under high-humidity conditions.

• Why it matters: This approach addresses the challenge of balancing disease resistance with crop yield, as constitutive resistance gene expression often causes yield penalties.
• What they did: Researchers linked a resistance gene to a humidity-responsive cis-element in potato, enabling targeted activation during high-humidity conditions that promote disease.
• The result: This strategy provides disease resistance without yield penalties, suggesting a promising method for weather-adaptive crop engineering.