Fig. 1.

Overview of the metabolome profiles in three Hylocereus spp. cultivars. a The phenotypes of DH, FR and BR showing various fruit flesh coloration and fruit size; fruit was harvested at 30 days after pollination b Classification of the metabolites detected into major functional classes; c Principal component analysis showing clustering pattern among samples and biological replicates based on metabolite ion intensity data. DH, FR, and BR represent the red, pink and white colored flesh samples, respectively. Mix represents the mixed samples used for quality control. Bar = 1 cm