Fig. 4From: Integrated transcriptomic and transgenic analyses reveal potential mechanisms of poplar resistance to Alternaria alternata infectionHeat maps of DEGs related to ROS signaling and pathogenesis-related proteins. The log2 fold change was colored using Cluster 3.0 (red for upregulated, green for downregulated), each horizontal row represents a DEG with its gene ID, and the vertical columns represent 2, 3, and 4 DPI from left to rightBack to article page