AGR — Cucumis sativus

Summary

CsAGR (CSA_3G827360) on cucumber chromosome 3 encodes a protein with auxin efflux carrier activity and inositol-1,4-bisphosphate 1-phosphatase activity, belonging to the auxin efflux carrier family. The gene is associated with auxin transport, gravitropism, phototropism, and responses to abiotic stimuli including oxidative stress, cation stress, and boron levels. It has been linked to numerous developmental traits such as fruit length, leaf vein morphology, shoot growth angle, lateral root number, root hair length, petiole length, stamen morphology, seed set, and adventitious root formation. Additional associations include regulation of endocytosis, cell cycle transitions, anthocyanin accumulation in response to UV light, miRNA catabolism, and phosphoinositide-mediated signaling. The protein localizes to the auxin efflux carrier complex, basal plasma membrane, recycling endosome, and clathrin-coated vesicles. Studies of related genes in other species connect this gene family to root patterning, vascular development, pollen tube growth, and fruit development.