AXR5 — Cucumis sativus

Summary

CsAXR5 (CSA_1G207820) on cucumber chromosome 1 encodes an AUX/IAA family protein with auxin receptor activity, auxin binding, transcription corepressor activity, and sequence-specific DNA binding. It is associated with auxin signalling, the TIR1-IAA-AUX/IAA interaction pathway, and ubiquitination and degradation of AUX/IAA proteins. The gene is linked to sex determination, inflorescence phyllotactic patterning, response to gravity, and regulation of anthocyanin anabolism. Traits associated with CsAXR5 include fruit position, leaf angle, photosynthetic ability, biomass yield, photoperiod-sensitive flowering time, phosphorus uptake, and water stress response. It localises to the nucleus, cytosol, plasma membrane, and SCF complex. Related genes in other species link the family to auxin homeostasis, hypocotyl elongation, and apical dominance.