Additional file 2 of Genomic signatures of natural selection at phenology-related genes in a widely distributed tree species Fagus sylvatica L

Additional file 2: Figure S1. Distribution of coefficients of three first principal components (PC1, PC2, PC3) determined based on 19 bioclimatic variables. Figure S2. Graphical method (as in Evanno et al. 2005) allowing for detection of the number of groups K using (A) ΔK and (B) the rate of change of the likelihood distribution (mean log-likelihood values). Figure S3. Bar plot of admixture proportions of individuals, inferred using K = 3 based on 2909 SNP loci. Individual’s proportions (q-values) are sorted within each cluster (cluster K1 – red, K2 – blue, K3 - green. Figure S4. Geographical distribution of European beech clusters according to the K = 3 model in STRUCTURE. Figure S5. Relationships between additive individual polygenic scores based on all 201 outlier markers and each of the explanatory variables: geographic (longitude, latitude, altitude), climate (PC1, PC2, PC3) and phenotypic (spring phenology, autumn phenology, height, survival). The solid line represents the regression line of the linear model. Figure S6. Relationships between additive individual polygenic scores based on all 201 outlier markers and each of the explanatory variables: geographic (longitude, latitude, altitude), climate (PC1, PC2, PC3) and phenotypic (spring phenology, autumn phenology, height, survival). The solid line represents the regression line of the quadratic model.