AGR — Nicotiana attenuata

Summary

A4A49_06506 (AGR, PIN3) in coyote tobacco (Nicotiana attenuata) encodes a member of the auxin efflux carrier family, possessing auxin efflux transmembrane transporter activity, inositol-1,4-bisphosphate 1-phosphatase activity, and phosphatidylinositol phosphate binding. The gene is associated with tropism, phototropism, gravity response, and detection of oxidative stress. It is linked to auxin signalling, regulation of seed size, and reproductive structure development. Associations include traits such as shoot growth angle, leaf vein morphology, root hair length, lateral root number, seed set percent, brassinosteroid content, and herbicide sensitivity. The gene is connected to phenotypes including primary root growth, phototropic hypocotyl bending, root hair outgrowth, shoot apical dominance, and vascular development. Studies of related genes in other species link the family to fruit development, leaf flattening, and insect resistance.