AXR5 — Pisum sativum

Summary

PsAXR5 (PSAT6G113040) on chromosome 6LG2 encodes an AUX/IAA family protein with domains including AUX_IAA and PB1-like, and is annotated with auxin receptor activity, auxin binding, transcription corepressor activity, and sequence-specific DNA binding. It is associated with auxin signaling, meristem development, inflorescence phyllotactic patterning, sepal and petal development, callus formation, and regulation of anthocyanin metabolism. The gene is linked to traits including leaf angle, adventitious root number, photosynthetic ability, phototropism, phosphorus uptake, water stress response, and nitrate sensitivity. It localizes to the nucleus, cytosol, and SCF ubiquitin ligase complexes. Studies of related genes in other species connect the AUX/IAA family to lateral root initiation, root gravitropism, fruit development, anther dehiscence, and responses to auxin, ethylene, and abscisic acid.