Extended Data Fig. 3: Drought-related climate variables are correlated with multivariate climatic predictors of BC-ratio.
From: Ecological factors influence balancing selection on leaf chemical profiles of a wildflower
a BC-ratio varies across climate space, with PC1 the strongest predictor (Supplementary Table 9). b Linear models and permutation tests reveal that low BC-ratio phenotypes are significantly correlated with drier environments of origin. Points in all panels represent phenotypic (LS mean BC-ratio) and environmental variation (WorldClim data from the location of origin) of a broad panel of accessions. Colors represent BC-ratio, ranging from 0% (blue) to 100% (red). Shapes denote genetic groups as described in Wang et al. (2019). COL: circles; NOR: triangles; UTA: squares; WES: crosses. Black lines represent lines of best fit estimated using linear models using discrete groups to control for population structure (‘approach A’) as described in Supplementary Methods.
