Figure 1. RAPD banding pattern of 40 traditional and improved cultivars of Pakistani rice generated by random primer OPA-18. The lanes represent M-1Kb plus molecular size marker; 1-Basmati-370, 2-Jhona-349, 3-Shaheen-basmati, 4-Palman-sufaid, 5-Basmati-C622, 6-Basmati-Pak, 7-Pak23710, 8-KS-282, 9-Basmati-385, 10-Super-basmati, 11-Basmati-2000, 12-Kashmir-basmati, 13-NIAB-IR9, 14-Sathra, 15-Rachna-basmati, 16-IR6, 17-Sugdasi-ratria, 18-Jajai-77, 19-Kangni-27, 20-DR-82, 21-DR-83, 22-Lateefy, 23-Sada-hayat, 24-DR-92, 25-Kanwal-95. 26-Shua-92, 27-Khushboo-95, 28-Shadab, 29-Sarshar, 30-Swat-1, 31-Swat-2, 32-Pakhal. 33-Dilrosh-97, 34-Fakhre-Malakand, 35-IR36, 36-Kinmaze, 37-Nipponbare, 38-Sugdasi-bengalo, 39-Sugdasi-sadagulab, 40-Sonahri-sugdasi.