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. 2022 Jan 3;12:782220. doi: 10.3389/fpls.2021.782220

FIGURE 4.

FIGURE 4

Expression profiling validation and correlation analysis. (A) The contents of six catechin monomers in seven tissues as measured with an HPLC system. (B) Heatmap of qRT-PCR transcript abundance patterns in seven different tissues. (C) Correlative analysis of four potential CsR2R3-MYB TFs, catechin biosynthesis genes and catechin accumulation patterns in different tissues of tea plants. R > 0.5, positive correlation; R < –0.5, negative correlation. AB, apical bud; YL, young leaf; SL, second leaf; ML, mature leaf; OL, old leaf; S, stem; R, root.