AS11 — Zea mays

Summary

ZM00001EB277490, designated ZmAS11 (also known as TAG1, DGAT1, and RDS1) on maize chromosome 6, encodes a diacylglycerol O-acyltransferase (EC 2.3.1.20) belonging to the MBOAT family, with the Oat_ACAT_DAG_ARE domain. The gene is associated with numerous processes including triglyceride and fatty acid metabolism, lipogenesis, endosperm and embryonic development, seed germination, and auxin transport. It localizes to the adiposome, chloroplast envelope, and ER membrane. ZmAS11 is linked to key agronomic traits such as grain yield, plant height, biomass yield, starch and protein content, flour particle size, and specific fatty acid profiles including palmitic, stearic, and oleic acid content. Associations also extend to seed oil content, seed mass, pollen development, leaf senescence, and responses to glucose, osmotic stress, and temperature. Related genes in other species are linked to seed oil accumulation, freezing tolerance, and leaf biomass.