Fig. 4From: The chloroplast genomes of four Bupleurum (Apiaceae) species endemic to Southwestern China, a diversity center of the genus, as well as their evolutionary implications and phylogenetic inferencesPairwise Ka/Ks ratios in Bupleurum. This heatmap shows pairwise Ka/Ks ratios between every sequence in the multigene nucleotide alignment. The original satellite imagery was obtained from Google Maps (Map data: Google, TerraMetrics; https://maps.google.com/), and modified with Adobe Illustrator CS6 (Adobe Systems Incorporated, San Jose, CA, USA)Back to article page