Fig. 3From: Identification and analysis of glutathione S-transferase gene family in sweet potato reveal divergent GST-mediated networks in aboveground and underground tissues in response to abiotic stressesPhylogenetic relationships (a) and intron-exon structures (b) of homologous GST genes in sweet potato, Ipomoea trifida, and Ipomoea nil. In (b), filled boxes represent exons, whereas lines represent intronsBack to article page