Fig. 2From: Comparative genomic analysis of the WRKY III gene family in populus, grape, arabidopsis and ricePhylogenetic tree of full-length WRKY III proteins from Populus, grape, Arabidopsis and rice. The tree was constructed using the neighbor-joining (NJ) method with MEGA 6.0. Dicotyledonous (Populus, grape and Arabidopsis) and monocotyledonous (rice) WRKY III proteins are marked with colored dots. The tree was also divided into four shared clades (clades 1–4) according to the bootstrap support and evolutionary distances. The gene names are listed in Additional file 1: Table S1Back to article page