AGR — Solanum tuberosum

Summary

PGSC0003DMG400008379 (StAGR, also known as StPIN6/StPIN7/StPIN4/StPIN8) on potato chromosome 10 encodes a member of the auxin efflux carrier family, possessing auxin efflux transmembrane transporter activity, inositol-1,4-bisphosphate 1-phosphatase activity, and phosphatidylinositol phosphate binding. The gene is associated with auxin efflux transport and signalling, gravitropism, phototropism, and responses to oxidative stress, cation stress, and UV light. It has been linked to potato development, including root growth, lateral root organogenesis, adventitious root formation, shoot apical dominance, vein formation, pollen tube growth, stigma development, and fruit seedlessness. Associations also include seed weight, seed set percent, shoot growth angle, leaf vein morphology, stamen and anther morphology, stem senescence, and sensitivity to blue light, manganese, boron, and herbicides. The protein localizes to the plasma membrane, recycling endosome, and clathrin-coated vesicles. Studies of related genes in other species link the PIN family to embryonic patterning, root meristem growth, and flowering time.