AGR — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.3HG0295310 (HvAGR) on barley chromosome 3H encodes a member of the PIN-like auxin efflux carrier family, with annotated molecular functions including auxin efflux and influx transporter activities, inositol-1,4-bisphosphate 1-phosphatase activity, and phosphatidylinositol phosphate binding. The gene is associated with auxin signalling, IAA efflux, and clathrin-mediated endocytosis of PIN proteins. It is linked to tropism, regulation of cell polarization, endocytic recycling, and response to oxidative stress and cation stress. Associations with agronomic traits include gravity response, phototropism, shoot growth angle, seed set percent, leaf vein morphology, root length, and sensitivity to blue light, ethylene, and herbicides. Related genes in other species are associated with plant height, tiller number, root system architecture, pollen development, and aluminium tolerance.