Fig. 3.

Populus euphratica DNA motifs bound by PeWRKY1 protein in DNA affinity purification sequencing (DAP-seq). The two top logos for PeWRKY1 binding are shown in (a) and (b). P. euphratica leaves were sampled from each of three individual plants and subjected to DAP-seq. E-value (the statistical significance of the motif) 1.9e-108 or 1.9 × 10^–108 (a). E value 5.2e-021 or 5.2 × 10–21 (b). The PeWRKY1 DAP-seq peaks located upstream of the transcription start site (TSS) of the PeHA1 gene are shown in Supplementary Table S3. (This figure is available in color at JXB online.)