F3H — Zea mays

Summary

ZM00001EB067380 (ZmF3H, also known as ZmTT6) on maize chromosome 2 encodes a flavanone 3-dioxygenase (EC 1.14.11.9) with chalcone isomerase and flavonol synthase activities, belonging to the 2-oxoglutarate-dependent dioxygenase family. The gene is associated with flavonoid, proanthocyanidin, and anthocyanin metabolism and accumulation, as well as pigment accumulation in various tissues including grain, seed coat, pericarp, leaf, awn, and flower. ZmF3H has been linked to agronomically important traits such as grain yield, grain weight, plant height, seedling height, root length, chlorophyll content, days to heading, drought tolerance, chilling stress response, oxidative stress response, UV-B light sensitivity, and heterosis. Additional associations include lignin content, IAA content, cytoplasmic male sterility, and root phototropism. The protein localises to the cytosol, nucleus, endoplasmic reticulum, and tonoplast.