AGR — Beta vulgaris subsp. vulgaris

Summary

BvAGR (BVRB_8G185320) on sugar beet chromosome 8 encodes an auxin efflux carrier, a member of the PIN family of transmembrane transporters. The protein exhibits auxin efflux and influx transporter activity, inositol-1,4-bisphosphate 1-phosphatase activity, and binds multiple phosphoinositides and clathrin. It localizes to the plasma membrane, endosomes, and the auxin efflux carrier complex. BvAGR is associated with tropism, gravitropism, phototropism, and responses to oxidative stress, cation stress, and boron levels. The gene is linked to regulation of endocytosis, phragmoplast microtubule organization, anthocyanin accumulation, and miRNA catabolism. Traits associated with BvAGR include gravity response, blue light sensitivity, root and shoot growth angles, leaf vein morphology, seed set, root hair density and length, lateral root number, adventitious root formation, stamen and anther morphology, petiole length, and herbicide sensitivity.