FAE1 — Brassica oleracea var. botrytis

Summary

BoFAE1 (BOLND125_C03P083500.1) on cauliflower chromosome 3 encodes a 3-ketoacyl-CoA synthase, a member of the FAE1-type polyketide synthase family with acyltransferase and naringenin-chalcone synthase activities. The gene is associated with fatty acid elongation, very-long-chain fatty acid metabolism, and lipid metabolism, and is linked to phytoene and polyketide anabolism. It localises to the endoplasmic reticulum and membrane. BoFAE1 is associated with seed maturation and numerous seed oil traits, including fatty acid composition, eicosenoic acid content, very-long-chain fatty acid content and synthesis, seed oil content and composition, and trichome development. Studies of related genes in other species link the family to erucic acid content, very-long-chain fatty acid accumulation, and wax ester accumulation, while sequence similarity connections extend to grain yield, seed weight, seed size, plant height, drought tolerance, and water use efficiency.