Figure 6 from: Printzen C, Domaschke S, Fernández-Mendoza F, Pérez-Ortega S (2013) Biogeography and ecology of Cetraria aculeata, a widely distributed lichen with a bipolar distribution. MycoKeys 6: 33-53. https://doi.org/10.3897/mycokeys.6.3185

Figure 6 - Variation partitioning diagrams using climate, geography and co-dispersal as explanatory components for the genetic structure of mycobiont and photobiont populations of Cetraria aculeata. Top, mycobiont; Center, photobiont, explanatory variables climate and spatial distances; Bottom, photobiont, explanatory variables climate and co-dispersal with the mycobiont. Left: genetic structure measured as pair-wise genetic distances between populations. Right: genetic structure measured as SNP composition. Numbers in the Venn diagrams indicate the fraction of the variation that is explained by the respective component or the intersection of components, with medians of the bootstrap analyses in italics. Results of the bootstrap analyses are also displayed in the bar charts with proportions of explained variation on the x-axes. Grey bars indicate results based on the original (non-resampled) data sets. From Fernández-Mendoza et al. (2011).