DFR — Brassica oleracea

Summary

BoDFR (BOLC102_C09P026360.1) on cabbage chromosome 9 encodes a protein with NAD(P)-binding and epimerase/dehydratase domains that exhibits dihydroflavonol 4-reductase, flavanone 4-reductase, chalcone isomerase, naringenin-chalcone synthase, and flavonol synthase activities. This gene is associated with anthocyanin, flavonol, proanthocyanidin, and carotenoid biosynthesis, as well as chlorophyll metabolism and breakdown, pigmentation, and regulation of phenylpropanoid and anthocyanin metabolism. It has been linked to leaf color, flavonoid and anthocyanin content, UV light sensitivity, photosynthetic ability, stamen morphology, flower development, root phototropism, adventitious root formation, herbicide sensitivity, insect damage response, pollen fertility restoration, stomatal closure, low temperature and oxidative stress responses, and root-knot nematode resistance. The protein localizes to the cytosol, nucleus, endoplasmic reticulum, and tonoplast. Related genes in other species are linked to seed coat pigmentation, flavonoid production, UV-B sensitivity, drought and salt tolerance, and male fertility.