Figure 6

Gene co-expression networks (GCN) of leaf and root transcriptomes of papaya plant during drought treatments. Up-regulated TFs, previously reported in response to abiotic stress and found in the stress datasets were set as “Regulators” for the construction of the networks. (a) GCN for leaf tissues showing time-point stress responses of up-regulated DDEGs. The three communities are labeled as I-a, II-a, and III-a, and the 37 most connected TFs are depicted in the network as white circles. (b) Same GCN as in a), but showing the location in the network of genes belonging to different enriched GO groups by Biological Process (BP). (c) GCN for root tissues showing time-point stress responses of up-regulated DDEGs. The eight communities are labeled as I-b–VIII-b, and the 56 most connected TFs are depicted in the network as white circles. (d) Same GCN as in b), but showing the location in the network of genes belonging to different enriched GO groups by BP. Nodes in (a) and (c) are colored according the time-point stress treatments, and nodes in (b) and (d) are colored according to enriched GO groups as shown in the Fig. legends. DASI = days after stress imposition. Detailed networks are depicted in Supplementary Figs S12 and S13.