The reason for kale reddening in late autumn is BoCBF2/BoMYB2 synergistically regulates BoDFR expression.

Summary: Have you ever noticed how ornamental kale turns a beautiful red in the cold autumn months? Scientists wanted to know exactly how this happens! They found that cold weather turns on a special "cold sensor" in the plant. This sensor teams up with another part of the plant to activate a color-making gene. Together, they act like a switch that tells the plant to make red pigments to protect itself from the cold. Understanding this neat trick could help us grow even brighter and more colorful plants in the future!