Features of promoters. a A + T content of coding regions and 50-nt intervals within promoters from Pl. halstedii, Ph. infestans, and Hy. arabidopsidis.
b Distribution of motifs in different Straminipila. Searches for the INR + FPR supra-motif, INR, FPR, and DPEP were performed in five oomycetes (Ph. infestans, Pl. halstedii, Hy. arabidopsidis, Py. ultimum, Sa. parasitica) and the diatom Thalassiosira pseudonana. Bars show the percentage of promoters within each species that contain the motifs within 200 nt of the start codon, corrected for false discovery. The figure on the left is a neighbor-joining tree based on ribosomal RNA and internal transcribed spacer (ITS) sequences. c Positional bias of INR + FPR supra-motif and CCAAT within Pl. halstedii promoters. The right of the panel compares the content of the two motifs in Ph. infestans and Pl. halstedii