Responses of the flavonoid pathway to UVB radiation stress in the desert plant Agriophyllum squarrosum from three altitudinal gradients

To study the commonness of flavonoid accumulation in Agriophyllum squarrosum under UV-B stress. To explore the molecular metabolic regulation mechanism of flavonoids synthesis of Agriophyllum squarrosum. under UV-B stress. This study will promote the understanding of the regulation mechanism of flavonoid synthesis of different ecotypes under UV-B stress, and provide theoretical basis for further accurate utilization and development of different ecotypes of Agriophyllum squarrosum.