Fig. 2.

Hierarchical cluster analysis of common DEGs in C. equisetifolia leaves that were exposed to drought stress for different times. DEGs were selected based on a cut-off of P-adjust < 0.05 and |log₂FC| ≥ 1. (a) Hierarchical cluster analysis of common DEGs in D_0 h vs. D_2 h and D_0 h vs. D_24 h. Red represents down-regulation and blue represents up-regulation of gene expression. Expression values were Z-scaled (log₁₀ FPKM). (b) The expression patterns of six clusters. The blue line indicates the average expression values of all genes in the gene set