Fig. 6: Model of how auxin induces ARF4 to promote the flowering pathway.

In woodland strawberry, auxin induces the expression of ARF4, and the ARF4 protein binds to and activates the AP1 and FUL promoters. The expression of AP1 and FUL initiates flowering. Symbols/abbreviations: ‘+’, promotion; AuxRE and HUD box, auxin-responsive element (ARF4 binding sites)