Figure 3: Genetic variation is correlated with elevation, but there is no evidence for divergent selection on short stamen number.

A) Genetic PCA for PC1 and PC2 from 1,858,706 SNPs. B) Genetic PCA for PC1 and PC2 with BOS individuals excluded. C) Qpc results showing the relationship between mean short stamen number and genetic differentiation (black line, p=0.26) is within expectations due to neutral evolution (grey shading). The fill color of each point represents the population elevation. Panels A and C used slightly different input data (see Methods).