IOS1 — Phaseolus vulgaris

Summary

PvIOS1 (PHAVU_005G164500) on chromosome 5 of French bean (Phaseolus vulgaris) encodes a protein with malectin and leucine-rich repeat domains and a serine/threonine/tyrosine kinase catalytic domain, possessing transmembrane receptor protein tyrosine kinase activity and red/far-red light photoreceptor activity. The gene is associated with pectin binding, ammonium channel activity, and regulation of defense response by callose deposition, as well as downregulation of defense response to oomycetes and response to flooding. It has been linked to numerous agronomic traits including yield, biomass, photosynthetic rate, water use efficiency, leaf angle, root phototropism, phosphorus uptake, and glyphosate sensitivity. Associations with salt tolerance, bacterial resistance, disease susceptibility, ABA signaling, and shade avoidance response have been observed. Studies of related genes in other species connect the family to pattern-triggered immunity, callose deposition, and resistance to Pseudomonas syringae.