Fig. 6

Phylogenetic tree of plant chloroplast genomes. Phylogram A and Cladogram B of 46 Cactaceae species inferred from 45 shared coding sequences (CDSs); C Phylogram of ten pitaya cultivars inferred from whole chloroplast sequences; Cladogram constructed based on the whole chloroplast sequences D and 63 shared CDSs E of the ten pitaya cultivars, with Camegiea gigantea as the outgroup. Branch lengths of phylogram represent evolutionary divergence, with longer branches indicating greater genetic change and shorter branches indicating higher conservation. The newly sequenced pitaya cultivars in this study are indicated by different colours of bold font. Red: red peel red pulp pitaya; Pink: red peel white pulp pitaya; Yellow: yellow peel white pulp pitaya. The branch nodes numbers represent the Bootstrap (BS) and Posterior Probability (PP) values