AGR — Solanum lycopersicum

Summary

SlAGR (SOLYC02G087660.4) on tomato chromosome 2 encodes a protein with auxin efflux carrier and membrane transporter domains, annotated with auxin influx and efflux transmembrane transporter activities, inositol-1,4-bisphosphate 1-phosphatase activity, and multiple phosphatidylinositol phosphate binding functions. The gene is associated with auxin efflux carrier complexes, recycling endosomes, and basal plasma membrane localisation. In tomato, SlAGR is linked to leaf flattening, flower abscission, shoot architecture, and parthenocarpic fruit development. Broader associations include gravity and phototropism response traits, root and shoot growth traits, flower and fruit development, hormone content, and responses to radiation, cation stress, and oxidative stress. Studies of related genes in other species connect the family to root patterning, gravitropism, phototropism, vascular development, and osmotic stress tolerance.