Tea-oil exists in seed in the form of oil body; the kind and number of oleosins decide the amount and property of oil body. During a long-term evolution, the oleosin genes of C. oleifera have lost their introns to facilitate their quick response and expression. The biosynthesis of tea-oil is a complicated system which involves many proteins and enzymes. Malonyl coenzyme A decides the synthetic speed of saturated fatty acids in C. oleifera seed. Stearoyl-ACP desaturase (SAD) as the key enzyme for forming monounsaturated fatty acids directly co...