Fig. 4From: Phylogeographical and population genetics of Polyspora sweet in China provides insights into its phylogenetic evolution and subtropical dispersalPhylogenetic tree of Polyspora based on combined chloroplast regions (trnH-psbA, rpoB-trnC, and petN-psbM); (a) Haplotype phylogenetic tree; (b) Past global mean temperature trends [8]. The light blue progress bar on each node is 95% HPD confidence range, the black number below branches are the median differentiation time, the blue number above branches are the support rate of ML tree and the posterior probability of BI tree, and the red circle node is the secondary calibration nodeBack to article page