Fig. 2
From: WRKY transcription factors: evolution, binding, and action
Distribution of WRKY family genes in 36 plantae species. Phylogenetic tree was constructed based on NCBI taxonomy browser (https://www.ncbi.nlm.nih.gov/Taxonomy/CommonTree/wwwcmt.cgi) and FigTree_v1.4.3 using Cyanidioschyzon merolae as an outgroup. The number of WRKYs on the right (for references see Additional file 1: Table S1). The expansion of WRKY family genes is mainly due to whole genome, segmental, and tandem duplications