CHS — Brassica oleracea var. botrytis

Summary

BoCHS (BOLND125_C02P006650.1) on cauliflower chromosome 2 encodes a chalcone synthase, a type III polyketide synthase bearing the chalcone/stilbene synthase active-site and N-terminal domains. The enzyme is annotated with naringenin-chalcone synthase, chalcone isomerase, flavanone 4-reductase, dihydroflavanol 4-reductase, flavonol synthase, and SUMO transferase activities. BoCHS is associated with flavonol and anthocyanin biosynthesis, pigmentation, response to UV light, auxin polar transport, and sporulation. It localises to the cytosol, nucleus, endoplasmic reticulum, and tonoplast. The gene is linked to flower and seed coat colour, flavonoid and anthocyanin content, drought tolerance, salt stress tolerance, root morphology, stomatal opening, photosynthetic rate, respiration rate, and flowering time. Related genes in other species connect the family to flavonoid production, UV-B sensitivity, phenylpropanoid pathway activity, male fertility, and circadian regulation.