CHS — Phaseolus vulgaris

Summary

PHAVU_002G039300 (PvCHS) on chromosome 2 of French bean encodes a chalcone synthase family protein with chalcone isomerase, naringenin-chalcone synthase, dihydroflavanol 4-reductase, flavanone 4-reductase, flavonol synthase, acyltransferase, SUMO transferase, and kinase binding activities. The gene is associated with flavonoid, anthocyanin, isoflavonoid, and phenylpropanoid biosynthesis, as well as responses to UV-B, oxidative stress, gravity, and heat acclimation. It localizes to the cytosol, nucleus, endoplasmic reticulum, and tonoplast. PvCHS is linked to seed coat color and pigmentation, anthocyanin content, drought tolerance, salt stress tolerance, nitrogen recycling, root morphology, flowering time, stomatal opening, and resistance to root-knot and cyst nematodes. Studies of related genes in other species connect the family to flavonoid production, UV-B sensitivity, and male fertility.