PHAVU_001G221100 — Phaseolus vulgaris

Summary

PvHY8 (PHAVU_001G221100) on chromosome 1 of French bean encodes a phytochrome A-E family photoreceptor with domains including PAS, GAF, and histidine kinase, and is annotated with photoreceptor activity, tetrapyrrole binding, and DNA-binding transcription activator activity. The gene is associated with far-red light sensitivity, photoperiod sensitivity, and light quality response, as well as traits including grain yield, seed set percent, vegetative vigor, leaf area, and plant growth hormone response. It is linked to phytochrome-mediated photoresponses, chloroplast-nucleus signaling, positive regulation of thermomorphogenesis, and nuclear accumulation of phytochrome A. Associations also include heat stress tolerance, root development, flowering time, and responses to submergence and glyphosate. Studies of related genes in other species connect the family to far-red light signaling, shade-induced hypocotyl elongation, and disease resistance.