AGR — Solanum tuberosum

Summary

PGSC0003DMG400028191 (StAGR) on potato chromosome 10 encodes a member of the auxin efflux carrier family, possessing auxin efflux transmembrane transporter activity and inositol-1,4-bisphosphate 1-phosphatase activity. The gene is associated with auxin signalling and transport pathways, including IAA efflux into the nucleus and clathrin-mediated endocytosis of PIN proteins. It has been linked to diverse biological processes such as tropism, detection of oxidative stress, anthocyanin accumulation in response to UV light, and regulation of phragmoplast microtubule organization. Associations with potato development have been observed, and the gene is connected to numerous traits including gravity response, phototropism, root and shoot growth, seed weight, leaf vein morphology, and herbicide sensitivity. Studies of related genes in other species link the family to root meristem growth, gravitropism, and embryonic pattern formation.