CHS — Phaseolus vulgaris

Summary

PHAVU_002G039166, also known as PvCHS or PvTT4, encodes a chalcone synthase, a type III polyketide synthase with chalcone/stilbene synthase domains. The gene product exhibits chalcone isomerase, naringenin-chalcone synthase, dihydroflavanol 4-reductase, flavanone 4-reductase, flavonol synthase, acyltransferase, SUMO transferase, and kinase binding activities. PvCHS is associated with chalcone, 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. The gene is linked to seed coat color and pigmentation, anthocyanin content, drought tolerance, salt stress tolerance, root-knot nematode resistance, flowering time, root morphology, and stomatal opening. Studies of related genes in other species connect the family to flavonoid production, UV-B sensitivity, and male fertility.