Physiological and multi-omics insights into ultraviolet B-induced stress adaptation in Fritillaria cirrhosa native to the Qinghai-Tibet Plateau

Compared to the wild type F. cirrhosa, the cultivated type demonstrated heightened UV-B tolerance through the activation of the UVR8-COP1-HY5 signaling pathway and increased biosynthesis of phenolic compounds. These insights provide a strong foundation for breeding strategies and conservation efforts to safeguard this valuable highland species.