Fig. 4From: Comparative transcriptome analysis reveals that chlorophyll metabolism contributes to leaf color changes in wucai (Brassica campestris L.) in response to coldThe concentrations of chlorophyll synthesis intermediates at different DAP in the two varieties under LT and NT. The concentrations of δ-aminolevulinic acid (A), porphobilinogen (B), uroporphyrinogen III (C), coproporphyrin III (D), protoporphyrin IX (E), Mg-protoporphyrin IX (F), and protochlorophyllide (G) were measured. LT, low temperature; NT, normal temperature; BC, before color change; C, color change; AC, after color change. Data were quantified using three biological replicates of each cultivar. Each data point represents the mean (± SD) of three separate experiments. Different letters within a column indicate significant differences (p < 0.05)Back to article page