AGR — Beta vulgaris subsp. vulgaris

Summary

BvAGR (BVRB_5G111350) on sugar beet chromosome 5 encodes an auxin efflux carrier of the PIN family, with annotated inositol-1,4-bisphosphate 1-phosphatase activity, 3'(2'),5'-bisphosphate nucleotidase activity, and auxin influx/efflux transmembrane transporter activity. The gene is associated with auxin signalling, clathrin-mediated endocytosis, and regulation of seed size, reproductive structure development, and growth processes. It localises to the auxin efflux carrier complex, recycling endosome, and basal plasma membrane. BvAGR is linked to traits including gravity response, phototropism, root hair density and length, lateral root number, shoot growth angle, seed set percent, leaf vein morphology, and responses to blue light, manganese, and osmotic stress. Phenotypic associations include primary root growth, lateral and adventitious root organogenesis, pollen tube growth, vascular development, and shoot apical dominance. Related genes in other species are linked to root patterning, embryonic development, flowering time, and osmotic stress tolerance.