The Plant Pathology Journal Open Access Relationships between Genetic Diversity and Fusarium Toxin Profiles of Winter

Fusarium head blight is one of the most important and most common diseases of winter wheat. In order to bet-ter understanding this disease and to assess the correla-tions between different factors, 30 cultivars of this cere-al were evaluated in a two-year period. Fusarium head blight resistance was evaluated and the concentration of trichothecene mycotoxins was analysed. Grain samples originated from plants inoculated with Fusarium cul-morum and naturally infected with Fusarium species. The genetic distance between the tested cultivars was determined and data were analysed using multivariate data analysis methods. Genetic dissimilarity of wheat cultivars ranged between 0.06 and 0.78. They were grouped into three distinct groups after cluster analysis of genetic distance. Wheat cultivars differed in resis