Fig. 1. The expression cassette comprising of napin promoter region (NAP), coding region for Arabidopsis microsomal fatty acid elongase 1 gene (FAE1) and nopaline-synthase terminator (NOS). Restriction sites XbaI and SstI were used to replace the GUS gene in vector pNap:GUS/NGKM and develop binary vector pNap: FAE1/NGKM (Millar and Kunst, 1997); NPTII: neomycin–phosphotransferase, RB: right border.