RhAGL24 Regulating Auxin-Related Gene RhARF18 Affects Stamen Petaloidy in Rose

AGAMOUS-LIKE 24 (AGL24) is a key gene regulating floral transition, but its involvement in flower organ identity remains largely unknown. In this study, we found that RhAGL24 strongly related to petal and stamen development rose. Its expression increases rapidly at the primordium stage maintains high level until complete differentiation stage. silencing number of malformed petals decreases stamens, indicating affects petaloidy. RhAG (AGAMOUS), class C associated with development, downregulated RhAGL24-silenced plants. Moreover, could directly bind promoter region RhARF18 (AUXIN RESPONSE FACTORS 18), regulator RhAG. Our results suggested RhAGL24-RhARF18 module regulates petaloidy rose provide new insights into function AGL24 for