Figure 1.

Phylogenetic analysis of WRKY proteins from cassava and Arabidopsis. The NJ tree was constructed with WRKY domains of WRKYs from cassava and Arabidopsis using ClustalX 2.0 and MEGA5 with 1000 bootstrap. Branches with less than 50% bootstrap support were collapsed. The WRKY proteins are grouped into three groups (1–3) and five subgroups (2a–2e). Group 1 proteins with the suffix “N” or “C” indicates the N-terminal WRKY domains or the C-terminal WRKY domains. “AtWRKYs” are the WRKY proteins from Arabidopsis. “MeWRYKs” indicate the WRKY proteins from cassava.