Fig. 3From: Genome-wide analysis of the WRKY gene family in the cucumber genome and transcriptome-wide identification of WRKY transcription factors that respond to biotic and abiotic stressesPhylogenetic clustering of group IIa WRKY proteins among fourteen different plant species. The phylogenetic tree was constructed by MEGA 5.0 using the Neighbor-Joining method. The WRKYs are classified into seven main clades with two subclades. The different-colored branch represents different clades. The red solid star indicates group IIa WRKY proteins from cucumberBack to article page