Fig. 5From: Primary root response to combined drought and heat stress is regulated via salicylic acid metabolism in maizeGlobal transcriptome analysis and the number of DEGs in three groups. A PCA analysis of biological repetitions after control, drought, heat and combined stress treatments. B The number of DEGs in the primary roots subjected water deficit, heat and combined stress compared with control plants. Genes up-regulated were denoted in red and down-regulated in green. C The number of DEGs and the overlap relationship among the comparison groups. Overlapping portions of the graph represented the number of DEGs in common among the comparison groupsBack to article page