CHS — Phaseolus vulgaris

Summary

PHAVU_002G039000 (PvCHS) on chromosome 2 of French bean encodes a chalcone synthase, a type-III polyketide synthase with chalcone/stilbene synthase domains. The gene is associated with chalcone, flavonoid, anthocyanin, isoflavonoid and phenylpropanoid biosynthesis, as well as chalcone isomerase, naringenin-chalcone synthase, dihydroflavanol 4-reductase, flavanone 4-reductase, flavonol synthase, acyltransferase, SUMO transferase, SUMO binding, protein tag, kinase binding, and protein binding activities. It has been linked to seed coat color and pigmentation, anthocyanin content, UV-B sensitivity and tolerance, drought tolerance, salt stress tolerance, nitrogen recycling, root and stamen morphology, flowering time, stomatal opening, oxidative stress response, heat acclimation, auxin polar transport, and response to gravity. The gene product localises to the cytosol, nucleus, endoplasmic reticulum and tonoplast. Studies of related genes in other species connect the family to flavonoid production, UV-B response, male fertility, freezing tolerance, circadian regulation, and pathogen susceptibility.