AXR5 — Cucumis sativus

Summary

CsAXR5 (CSA_2G200440) on cucumber chromosome 2 encodes an AUX/IAA family protein with auxin receptor activity, auxin binding, transcription corepressor activity, and sequence-specific DNA binding. It is associated with sex determination, inflorescence phyllotactic patterning, response to gravity, response to carbohydrate, negative regulation of transcription by RNA polymerase II, and regulation of anthocyanin anabolism. The gene is linked to traits including biomass yield, photosynthetic ability, fruit growth and development, photoperiod-sensitive flowering time, leaf angle, root phototropism, phosphorus uptake, and water stress response. It localizes to the nucleus, cytosol, plasma membrane, plant-type vacuole, and SCF ubiquitin ligase complex. Studies of related genes in other species link the family to auxin resistance, lateral root initiation, shoot regeneration, and vascular tissue development.