CHS — Beta vulgaris subsp. vulgaris

Summary

BvCHS (BVRB_6G151690) on sugar beet chromosome 6 encodes a chalcone/stilbene synthase family protein with polyketide synthase type-III domains and exhibits multiple enzyme activities including naringenin-chalcone synthase, chalcone isomerase, flavanone 4-reductase, flavonol synthase, and SUMO transferase activities. The gene is associated with anthocyanin, flavonoid, chalcone, polyketide, and carotenoid biosynthesis, as well as responses to UV-B, jasmonic acid, oxidative stress, gravity, and heat acclimation. It has been linked to root yield, photosynthetic rate, respiration rate, flowering time, root morphology, anthocyanin content, stomatal opening, and abiotic stress tolerance including salt and drought tolerance. The protein localizes to the cytosol, nucleus, endoplasmic reticulum, and tonoplast. Studies of related genes in other species connect the family to pollen exine development, male fertility, sporopollenin biosynthesis, and disease resistance.