Fig. 1 from Li et al. (2010) showing progression of dominance from A. chinensis var. chinensis and polyploidy in western China to var. deliciosa and diploidy in the east: “The geographical distribution of 16 sample populations of Actinidia. A, The three steps of the Chinese topography are shown and the rectangle indicates the region in which the samples were obtained. B, Pie diagrams represent the proportion of ploidy races within each population. The colour spectrum of the map from blue to red indicates the altitude change.”