1. 1Université Catholique de Louvain (UCL), Earth and Life Institute, Applied Microbiology, Mycology, Croix du Sud 2, bte L7.05.06, 1348 Louvain-la-Neuve, Belgium
2. 2Institut Togolais de Recherche Agronomique (ITRA), B.P. 1163, Lomé, Togo
3. 3Laboratory of Tropical Crop Improvement, Department of Biosystems, Faculty of Bioscience Engineering, KU Leuven, Kasteelpark Arenberg 13, 3001 Leuven, Belgium