The typical HPLC profile obtained for wild-type Col (A) and the five 35S: AOP2 transgenic lines (3, 4, 8, 9 and 10) (B). Panel A: The typical HPLC profile of wild-type Col is shown. Peak 1 corresponds to the 3-methylsulfinylpropyl glucosinolate, and peak 2 corresponds to 4-methylsulfinylbutyl glucosinolate. Panel B: The HPLC profiles of transgenic lines 3, 4, 8, 8 and 10 are shown. Peak 1 corresponds to 3-methylsulfinylpropyl glucosinolate; peak 2 corresponds to 4-methylsulfinylbutyl glucosinolate, peak 3 corresponds to 2-propenyl glucosinolate peak 4 corresponds to 3-butenyl glucosinolate.