Fig. 4

Comparative analysis of the chloroplast genomes of six pitaya cultivars. A Comparison of the chloroplast whole genomes of seven pitaya cultivars using Selenicereus megalanthus annotation as a reference. Vertical scale depicts sequence similarity in aligned regions with percentage identity ranging from 50%− 100%; B Sliding window analysis of the chloroplast genomes of six pitaya cultivars. X-axis: position of the midpoint of the window; Y-axis: each window's nucleotide diversity. Highly variable sites (Pi ≥ 0.015) are labelled above the corresponding positions