Fig. 6

Functional association networks of Arabidopsis orthologs of PS DEGs in response to drought stress. Arabidopsis orthologs forming networks are shown (each node represents a gene). a Interactions among the up-regulated genes. b Interactions among the down-regulated genes. c Subnetwork of the cellulose synthase complex (CSC) from secondary cell wall (SCW). Black dashed rectangles in a and b indicate subnetworks that protrude from the main network or formed an independent network (transcription factors). Dashed rectangle in red within the subnetwork of cell-wall remodeling indicates components of the CSC from SCW. Colored lines between nodes indicate the various types of interaction evidence: black line, co-expression; light blue line, association in curated databases; purple line, experimental