Figure 7

Maximum likelihood (ML) tree of Reichardia and closely related Launaea and Sonchus species based on (a) the complete plastome and (b) nrDNA ITS sequences. Support values are provided above and below branches (ML bootstrap value with 1000 replicates on the left and Bayesian Inference posterior probabilities on the right). “//” indicates that the branch lengths between outgroup and ingroup taxa are shortened to improve readability of trees. Newly sequenced nine chloroplast plastid genomes in this study are marked with an asterisk (*). Within Reichardia, the species with same chromosome numbers are colored in red for n = 9, navy blue for n = 8, and aqua blue for n = 7 chromosomes.