AGR — Brassica oleracea var. botrytis

Summary

BoAGR (AGR, PIN2) on cauliflower chromosome 9 encodes an auxin efflux carrier of the PIN-like family, with annotated auxin efflux transmembrane transporter activity, inositol-1,4-bisphosphate 1-phosphatase activity, and phosphatidylinositol phosphate binding. It is associated with acropetal auxin transport, auxin export across the plasma membrane, root hair initiation, regulation of cell polarization, anthocyanin accumulation in tissues in response to UV light, and detection of oxidative stress. The gene is linked to traits including gravity response, phototropism response, root and shoot architecture, leaf morphology, water use efficiency, stomatal resistance, ethylene sensitivity, brassinosteroid sensitivity, and stem senescence. Studies of related genes in other species connect the family to gravitropic response, polar subcellular localization, auxin efflux, and osmotic stress tolerance.