IOS1 — Phaseolus vulgaris

Summary

PvIOS1 (PHAVU_005G163800) on chromosome 5 of French bean encodes a protein with malectin-like domain, leucine-rich repeat, and serine/threonine/tyrosine kinase catalytic domain, annotated with transmembrane receptor protein tyrosine kinase activity, red/far-red light photoreceptor activity, pectin binding, ammonium channel activity, and coreceptor activity. The gene is associated with downregulation of defense response to oomycetes, regulation of defense response by callose deposition, response to flooding, lateral root branching, endosperm development, abscisic acid metabolism, circadian regulation of calcium ion oscillation, and regulation of leaf senescence. It localizes to the pollen tube, nuclear body, plasmodesma, membrane, and cytosol. Associations include yield, biomass, photosynthetic rate, water use efficiency, leaf angle, photoperiod-sensitive flowering, salt tolerance, bacterial and downy mildew resistance, disease susceptibility, ABA signaling, shade avoidance, and seed germination. Studies of related genes in other species link the family to ammonium transport, pathogen resistance, phototropic response, thermotolerance, and biomass production.