Fig. 6.

Characterization of P. clusters enriched for pathogens or saprophytes. Principle component analysis (PCA) based on the presence/absence of species in putative orthologous gene clusters derived from QuartetS analysis. Figure 6a. PCA analysis based on 61 gene clusters enriched for saprophytic species. Figure 6b. PCA analysis based on 163 clusters enriched in pathogens. Figure 6c. Venn diagram showing the distribution of orthologous gene clusters for the two ectomycorrhizal species Tuber melanosporum and Cenococcum geophilum, the saprophyte/ericoid mycorrhizal species Oidiodendron maius as well as P. subalpina. Abbreviations of species are given in Table 2. Color code: green: mycorrhizal species, red: plant pathogens, purple: soil saprotrophs and blue: P. subalpina