Fig. 3From: Genome-wide identification, characterisation and functional evaluation of WRKY genes in the sweet potato wild ancestor Ipomoea trifida (H.B.K.) G. Don. under abiotic stressesGene structure of WRKY in I. trifida. The evolutionary tree of ItfWRKY genes was constructed using MEGA7 and shown on the left. Schematic of exon/intron structure was displayed by the Gene Structure Display Server (http://gsds.cbi.pku.edu.cn/). The exons, introns and UTRs are represented by red solid boxes, black lines and blue boxes, respectivelyBack to article page