<i>CHPO</i> coordinates chilling recovery and nitrogen use in rice

A rice gene named CHPO was identified as coordinating chilling resilience and nitrogen-use efficiency on June 17, 2026. Researchers discovered that CHPO acts as a key regulator, influencing how rice plants respond to cold temperatures and utilize nitrogen. This finding suggests that CHPO plays a significant role in the domestication of rice, a process that likely shaped its ability to adapt to varying environmental conditions. The study, published in Nature, highlights that manipulating CHPO could lead to the development of new rice varieties that are more resilient to climate change impacts, such as increased chilling events, and require less nitrogen fertilizer. This dual benefit addresses critical challenges in global food security and sustainable agriculture by potentially increasing crop yields in cooler regions and reducing the environmental footprint of rice cultivation. The domestication-shaped regulatory mechanism offers a promising avenue for targeted breeding programs aimed at enhancing both crop performance and environmental sustainability.