Fig. 6

Network analysis of the PgbZIP transcripts expressed in the 4-year-old roots of 42 genotypes. a The co-expression network of the 273 PgbZIP transcripts constructed at P ≤ 5.0E-02. It consists of 208 nodes and 1,994 edges. b The 18 clusters of the network. c Tendency that PgbZIP transcripts form a network using the randomly-selected ginseng unknown transcripts as a control: variation in number of nodes. d Tendency that PgbZIP transcripts form a network using the randomly-selected ginseng unknown transcrips as a control: variation in number of edges. e Statistics of variation in number of nodes in the PgbZIP network. f Statistics of variation in number of edges in the PgbZIP network. “**”, significant at P ≤ 0.01; Error bar, the standard deviation for 20 bootstrap replications