| Abstract: | Random amplified microsatellite (RAMS) markers were used for the analysis of genetic variation within and among the intersterility groups of Heterobasidion annosum. Isolates from seven European countries were used, and the analysis of 77 markers revealed banding patterns with several markers unique to intersterility (IS) groups S, P and F. The highest number of polymorphic markers and the lowest number of fixed markers was observed within IS group P. In addition, a low level of geographic differentiation was observed within IS groups S and P by amova analysis. |
