DFR — Solanum tuberosum

Summary

StDFR (PGSC0003DMG400021805) on potato chromosome 12 encodes a protein with NAD(P)-binding and epimerase/dehydratase domains that exhibits dihydroflavanol 4-reductase, flavanone 4-reductase, anthocyanidin reductase, and cinnamyl-alcohol dehydrogenase activities (EC 1.1.1.234, 1.1.1.219). The gene is associated with anthocyanin and flavonoid biosynthesis, pigmentation, lignin anabolism, secondary metabolism, starch and sucrose metabolism, carbon catabolite repression, histogenesis, and syngamy. It has been linked to petal, flower, and leaf color, as well as anthocyanin, flavonoid, and starch content, and photosynthetic rate. The protein localizes to the nucleus. Studies of related genes in other species link the family to fruit color, leaf thickness and shape, shoot biomass, chlorophyll and carotenoid content, photosynthetic parameters, water use efficiency, stomatal resistance, pollen fertility, and drought tolerance.