IAR2 — Nicotiana attenuata

Summary

A4A49_38992 (IAR2, also known as IAA26, PAP1) on chromosome 3 of coyote tobacco (Nicotiana attenuata) encodes an AUX/IAA family protein with auxin receptor activity, auxin binding, SUMO transferase activity, and DNA-binding transcription factor activity. The gene is associated with phenylpropanoid and flavonoid metabolism, proanthocyanidin accumulation, and alkaloid anabolism. It is linked to developmental processes including lateral root morphogenesis, meristem development, embryonic pattern specification, vegetative phase change, and leaf senescence. Associations with traits include yield, water stress response, nitrate sensitivity, herbicide sensitivity, and biotic stress response. The gene product localizes to the nucleus, cytosol, SCF complex, and plant-type vacuole, and is connected to SCF-dependent proteasomal degradation pathways.