Fig. 1

Expression profiling of TaWRKYs at different senescence stages. a Heatmap depiction of TaWRKYs among four developmental leaf stages. Blue indicates the expression level of TaWRKYs decreased relative to YL, whereas red indicates the transcription level of TaWRKYs relative to YL. (YL, young leaves; ML, mature leaves; ES, early senescent leaves, with < 25% leaf area yellowing; LS, late senescent leaves with > 50% leaf area yellowing). b Phylogenetic analysis of senescence-related TaWRKYs. c Transcription level (FPKM value) of TaWRKY42-B, TaWRKY42-A and TaWRKY42-D were monitored through the progression of leaf senescence. (Dots and asterisks indicate down and up-regulated genes)