Fig. 2

Phenotype of three sweetpotato varieties and dynamic profiles of the total carotenoid content. A The color phenotype of tuberous roots of white-fleshed “XS18,” yellow-fleshed “XX,” and orange-fleshed “SS8” at 120 DAP. B Total carotenoid contents of XS18, XX, and SS8 at six developmental stages. All data are the means of three biological replicates. Statistically significant differences (p < 0.05) are indicated with different letters for the same cultivar