Recently, researchers from the Peking University Institute of Advanced Agricultural Sciences in cooperation with the College of Horticulture of South China Agricultural University and other units have jointly published a research paper in The Plant Journal. The paper, titled "An R-R-type MYB transcription factor promotes nonclimacteric pepper fruit carotenoid pigment biosynthesis," elucidates the transcriptional regulatory mechanism of capsanthin biosynthesis in chili peppers. The study represents the first identification of a key regulatory gene in capsanthin biosynthesis, delineates the mechanism of ABA signal-mediated biosynthesis of carotenoids in non-climacteric chili fruits, and discovers the evolutionary mechanism of differential regulation of capsanthin biosynthesis in the Solanaceae family. This lays a crucial groundwork for the genetic enhancement of chili pepper coloration.