FAD3 — Brassica oleracea var. botrytis

Summary

BoFAD3 (BOLND125_C03P019750.1_BOLND125_V1) on cauliflower chromosome 3 encodes a fatty acid desaturase with omega-3 and omega-6 fatty acid desaturase activity, functioning as an acyl-lipid desaturase. The gene is associated with unsaturated fatty acid anabolism and localises to chloroplast and endoplasmic reticulum membranes. BoFAD3 is linked to alpha-linolenic acid and linoleic acid content, seed viability, seed weight and size, plant height, photosynthetic rate, water use efficiency, stomatal resistance, and responses to temperature stress and aphids. It is also associated with disease tolerance, flower development, and xanthophyll content. Studies of related genes in other species link the family to linolenic acid content in seeds, aphid resistance, salt tolerance, and resistance to Botrytis cinerea.