AXR5 — Pisum sativum

Summary

PSAT6G102800 (AXR5, IAA4) encodes an AUX/IAA family protein with auxin receptor activity, auxin binding, red/far-red light photoreceptor activity, and transcription corepressor activity, and is associated with miRNA binding, ubiquitin-protein transferase activity, and sequence-specific DNA binding. The gene is associated with auxin signaling, glucose mediated signalling, callus formation, meristem development, and regulation of anthocyanin anabolism. It has been linked to numerous traits including leaf angle, adventitious root number, photosynthetic ability, phototropism, phosphorus uptake, water stress response, glyphosate sensitivity, nitrate sensitivity, and fruit and seed development. Localisation evidence places the product in the nucleus, cytosol, plasmalemma, plant-type vacuole, and SCF ubiquitin ligase complexes. Studies of related genes in other species link the AUX/IAA family to root gravitropism, lateral root initiation, fruit development, anther dehiscence, and vascular tissue development.