AGR — Phaseolus vulgaris

Summary

PHAVU_009G210900, designated PvAGR, encodes a member of the auxin efflux carrier family (PIN-like) and is annotated with auxin efflux transmembrane transporter activity, as well as inositol-1,4-bisphosphate 1-phosphatase activity, phosphatidylinositol phosphate binding, and protein phosphatase regulator activity. In French bean, this gene is associated with basipetal and acropetal auxin transport, regulation of cell polarization, anthocyanin accumulation in response to UV light, and detection of oxidative stress. It is linked to traits including gravity response, root number, relative root length, phototropism, leaf vein morphology, water use efficiency, stomatal resistance, stem senescence, and brassinosteroid content. The protein localizes to the basal plasma membrane and auxin efflux carrier complex. Studies of related genes in other species connect the family to root gravitropic response, polar auxin transport, and salt tolerance.