1. Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
2. Department of Microbiology and Plant Pathology, University of Pretoria, Pretoria, South Africa
3. Agroscope Changins-Wädenswil (ACW), Plant Protection Division, Wädenswil, Switzerland
4. Computational Genomics, CeBiTec, Bielefeld University, Bielefeld, Germany