The expression of carotenoid biosynthesis and degradation genes in <i>A</i>. <i>chinensis</i> var. <i>chinensis</i> ‘Hongyang’ outer pericarp during fruit development.

<p><i>CCD</i>, carotenoid cleavage dioxygenases; <i>CHY</i>, non-heme hydroxylases; <i>CRTISO</i>, 7,9,7',9'-tetra-<i>cis</i>-lycopene isomerase; <i>CYP</i>, P450 hydroxylase; <i>LCYB</i>, lycopene β-cyclase; <i>LCYE</i>, lycopene γ-cyclase; <i>NCED</i>, 9<i>-cis-</i>epoxycarotenoid dioxygenase; <i>PDS</i>, phytoene desaturase; <i>PSY</i>, phytoene synthase; <i>PTOX</i>, alternative oxidase; <i>VDE</i>, violaxanthin de-epoxidase; <i>ZDS</i>, ζ-carotene desaturase; <i>ZEP</i>, zeaxanthin epoxidase; <i>ZISO</i>, 9,15,9’-tri-<i>cis-</i>ζ-carotene isomerase. Error bars indicate standard error (n = 3). The asterisk (*) represents that the sample was used as reference in relative comparison. The different small letters for number in a same gene represent significant difference at 0.05 level. Heatmap was performed using the software of MEV. Color scale represents log2^{−ΔΔ<i>C</i>t} counts where blue indicates low level and red indicate high level.