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Fig. 5 | BMC Plant Biology

Fig. 5

From: Metabolite profiling and transcriptomic analyses reveal an essential role of UVR8-mediated signal transduction pathway in regulating flavonoid biosynthesis in tea plants (Camellia sinensis) in response to shading

Fig. 5

The shading effects on transcript abundance of potential genes and TFs involved in flavonoid biosynthesis and light signal transductions in tea buds. a The shading effects on transcript abundance of genes and potential TFs involved in the flavonoid biosynthetic pathway. b The shading effects on transcript abundance of potential genes and TFs involved in the UVR8-mediated UV-B, UV-A/blue light and red/far-red light signal transduction pathways, respectively. c Cluster analysis of expression of all potential genes and TFs in response to shading treatment. The heatmaps are constructed from the competitive expression of genes (log2 FPKMS80–90%/FPKMcontrol) from the transcriptome datasets. S 4h, S 8h, S 2d, S 8d and S 14d indicate time points at 4h, 8h, 2d, 8d and 14d throughout shading period. The triangle with colors represents potential genes involved in the flavonoid biosynthetic pathway (functional enzymes, yellow; TFs, green) and different light transduction pathways (UV-B radiation, purple; UV-A/blue light, blue; red/far-red light, red; genes and TFs involved in three light signal transduction, black). Data shown are the average mean of three biological replicates (n = 3). *Significant differences comparing the Control treatment at each time point according to one-way ANOVA and a Fisher’s LSD test at the 5% level (*p < 0.05, **p < 0.01; fold change ≥2)

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