European Scientific Journal November 2015 edition vol.11, No.33 ISSN: 1857 – 7881 (Print) e - ISSN 1857- 7431 392 GENETIC DIVERSITY OF FABA BEAN (VICIA FABA L.) POPULATIONS ESTIMATED BY ISOZYMIC AND MOLECULAR MARKERS: RELATIONSHIP BETWEEN THE TWO METHODS Ali Ouji, PhD Regional Research Development Office of Agriculture in Semi Arid North West of Kef, Tunisia Field Crop’s Laboratory, National Institute for Agricultural Research of Tunisia, Ariana, Tunisia Safia El-Bok, PhD Laboratory of Biodiversity, Climate Change and Biotechnology, Faculty of Sciences of Tunis, Tunis El Manar University, Tunis, Tunisia. Mustapha Rouaissi, PhD Biotechnology and Physiology Laboratory, National Institute for Agricultural Research of Tunisia, Ariana, Tunisia Naeem H. Syed Plant Research Unit, University of Dundee at SCRI, Invergowrie, Dundee, DD25DA, UK Maria Jose Suso, PhD Instituto de Agricultura Sostenible, Apartado, Cordoba, España Andrew J. Flavell Plant Research Unit, University of Dundee at SCRI, Invergowrie, Dundee, DD25DA, Mohamed El Gazzah, PhD Laboratory of Biodiversity, Climate Change and Biotechnology, Faculty of Sciences of Tunis, Tunis El Manar University, Tunis, Tunisia Mongi Ben Younes, PhD Regional Research Development Office of Agriculture in Semi Arid North West of Kef, Tunisia Mohamed Kharrat, PhD Field Crop’s Laboratory, National Institute for Agricultural Research of Tunisia, Ariana, Tunisia