Fig. 7
The expression of photosynthesis-related genes in leaves of Z. xanthoxylum under different heat treatments. (a) and (b) show the number of DEGs at 40 °C and 45 °C for 0.5 h, respectively; (c) and (d) show the number of DEGs at 40 °C and 45 °C for 6 h, respectively. The red upward arrows and black downward arrows show the total number of up-regulated DEGs and down-regulated DEGs, respectively. (e) Venn diagrams showing the number of unique and common DEGs related to PSII in leaves of Z. xanthoxylum at 40 °C and 45 °C for 6 h. (f) Venn diagrams showing the number of unique and common DEGs related to Chl catabolism in leaves of Z. xanthoxylum at 40 °C and 45 °C for 6 h. (g) Heat maps of transcript abundance for 14 up-regulated PSII genes identified only at 40 °C for 6 h. (h) Heat maps of transcript abundance for 8 down-regulated Chl catabolism genes identified only at 40 °C for 6 h. The relative expression levels were calculated after log2 transformation of FPKM values plus 1