Figure 5.

Variations in the CitCYP97B promoter.

(A) Polymorphisms in the CitCYP97B promoter in different haplotypes (Hap.1–Hap.7).

(B–D) Expression levels of CitCYP97B(B), CitBCH1(C), and CitBCH2(D) in mature citrus varieties with different haplotypes. Relative expression was quantified by RT–qPCR. Data are presented as mean values ± standard error in triplicate.

(E) Abundance of β-cryptoxanthin in mature citrus pulp from different genotypes.

(F) Activities of the CitCYP97B promoter from different haplotypes are represented as LUC/REN ratios. Asterisks indicate statistically significant differences determined with Student’s t-test. ∗∗P < 0.01; ∗∗∗P < 0.001.