Potato glycosterol rhamnosyltransferase, the terminal step in triose side-chain biosynthesis

Antisense downregulation of Sgt3 in tubers of transgenic potato plants resulted in a significant reduction in α-solanine and α-chaconine accumulation with a concomitant accumulation of β-solanine and β-chaconine. Using reverse genetics, SGT3 function is assigned as the β-solanine and β-chaconine rhamnosyl transferase.