“…Electrophoresis proved to be the most suitable method for separation and comparison of proteins (Gordon et al, 1988;El-Esawi, 2008), and could be used to characterize different plant genotypes (Sammour, 1990(Sammour, , 1999Sammour et al, 1994;DellaGatta et al, 2002;Liang et al 2006;Toosi et al, 2011). Electrophoretic analysis of seed storage proteins was used to assess the genetic variation, which provide a useful information for evaluating the taxonomic relationships at the plant species and subspecies levels (Vries, 1996;Rabbani et al, 2001;Sihag et al, 2004;Sammour et al, 2007;Kakaei and Kahrizi, 2011;Toosi et al, 2011;Khurshid and Rabbani, 2012;Khan et al, 2014;Choudhary et al, 2015;Mir et al, 2015). Toosi et al (2011) used sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) to characterize the protein profiles of B. juncea var.…”