AGR — Cucumis sativus

Summary

CsAGR (CSA_5G284520) on cucumber chromosome 5 encodes a protein with auxin efflux carrier domains and exhibits both auxin influx and efflux transmembrane transporter activities, as well as inositol-1,4-bisphosphate 1-phosphatase activity and phosphatidylinositol phosphate binding. The gene is associated with tropism, detection of oxidative stress, phosphoinositide-mediated signaling, anthocyanin accumulation in response to UV light, stigma development, and regulation of cell wall organization. It localizes to the auxin efflux carrier complex, basal plasma membrane, recycling endosome, and clathrin-coated endocytic vesicles. CsAGR is linked to numerous agronomic traits including fruit length, seed set percent, leaf angle, shoot growth angle, root hair length, lateral root number, phototropism, gravitropism, and brassinosteroid content. Studies of related genes in other species connect the family to root meristem growth, embryonic patterning, and polar auxin transport.