Fig 6. A proposed model illustrating the endogenous competitiveness between FRILAIR, miR397 and LAC11a in modulating strawberry fruit ripening.

Both FRILAIR and LAC11a mRNAs can be cleaved by miR397. Accumulation of FRILAIR releases the LAC11a repression, which subsequently promotes expressions of genes involved in anthocyanin biosynthesis pathway, leading to the acceleration of strawberry fruit ripening. Solid lines represent regulatory links observed in strawberry, and dashed lines represent upstream and downstream elements of the gene regulatory network for fruit ripening. Arrows indicate positive regulation, and blunt-ended bars indicate inhibition.