PHAVU_003G188400 — Phaseolus vulgaris

Summary

PvPRR1 (PHAVU_003G188400) on chromosome 3 of French bean encodes a phosphorelay response regulator with DNA-binding transcription factor activity, phytochrome binding, blue light photoreceptor activity, and protein dimerization activity, containing CONSTANS-like, ARR-like, and CCT domains. It is associated with rhythmic processes, circadian clock regulation, photoentrainment, and the downregulation of long-day photoperiodism and flowering. The gene is linked to negative regulation of cellulose anabolism, regulation of auxin biosynthesis, photosynthesis light reaction, stomatal complex patterning, and starch metabolism. Associations include petiole size, seed protein content, photoperiod sensitivity, drought stress tolerance, abscisic acid accumulation, stomatal conductance, and responses to nematodes, aphids, and spot blotch. Studies of related genes in other species link the family to circadian rhythm, photoperiod-dependent flowering, and drought recovery.