Figure 4: Agarose gel electrophoresis (2%) of PCR products amplified with hrpF primer set. Lanes: 1-10, X. campestris pv. campestris isolates (Xcc-2, 3, 4, 5,10, 14, 20, 25, 28 and 33 respectively) The arrow indicates 619 bp amplification. Lane M: molecular size marker (100bp DNA ladder, Bangalore Genei).