AGR — Solanum tuberosum

Summary

StAGR (PGSC0003DMG400005956) on potato chromosome 4 encodes a member of the auxin efflux carrier family, possessing both auxin efflux and influx transmembrane transporter activities, along with inositol-1,4-bisphosphate 1-phosphatase activity and phosphatidylinositol phosphate binding. This gene is associated with potato development, tropism, anthocyanin accumulation in response to UV light, and detection of oxidative stress. It has been linked to numerous traits including adventitious root length, gravity response, phototropism, seed weight, shoot growth angle, leaf vein morphology, brassinosteroid content, and herbicide sensitivity. The encoded protein localizes to the auxin efflux carrier complex, basal plasma membrane, recycling endosome, and clathrin-coated vesicles, and is associated with auxin signalling, endocytic recycling, and regulation of phragmoplast microtubule organization. Related genes in other species are linked to root patterning, gravitropism, and embryonic development.