Fig. 6
Plastid sequence divergence among selected Malpighiales. In the ML tree on the left, genes were selected to span the ratios of nonsynonymous to synonymous substitution rates greater than one on the branches related to Hypericum ascyron. Phylograms (right) of concatenated genes depicting nonsynonymous (dN) and synonymous (dS) sequence divergence for three individual genes are shown. Genes that show positive selection are selected. Red branches indicate genes with significantly higher dN/dS values. All trees were drawn to the same scale