CHS — Brassica oleracea

Summary

BoCHS (BOLC102_C02P006820.1_BOLC102_V1) on cabbage chromosome 2 encodes a chalcone synthase, a type III polyketide synthase with chalcone/stilbene synthase domains and thiolase-like features. The gene product exhibits chalcone isomerase, naringenin-chalcone synthase, flavanone 4-reductase, dihydroflavanol 4-reductase, flavonol synthase, and SUMO transferase activities, and is associated with flavonol and anthocyanin biosynthesis, phenylpropanoid metabolism, pigmentation, leaf formation, and responses to gravity and UV light. BoCHS is linked to flower, seed coat, and leaf color, chlorophyll content, photosynthetic and transpiration rates, drought tolerance, salt stress tolerance, and root-knot nematode resistance. The protein localises to the cytosol, nucleus, endoplasmic reticulum, tonoplast, and PKS complex. Studies of related genes in other species connect the family to flavonoid production, glucosinolate biosynthesis, male fertility, and UV-B sensitivity.