FAP1 — Zea mays

Summary

ZM00001EB107290 (FAP1) on maize chromosome 2 encodes a chalcone isomerase with intramolecular lyase activity and fatty acid binding. The gene is associated with pigment accumulation, regulation of flavonoid anabolism, and several metabolic processes including flavonoid, sphingolipid, and primary metabolism. It is linked to agronomically important traits such as grain color, grain weight, grain yield, anthocyanin content, drought tolerance, salt tolerance, germination rate, seedling height, root length, and heterosis. The product localizes to the chloroplast envelope, stroma, plastid, and cytosol. Studies of related genes in other species link the chalcone isomerase family to photochemical quenching.