Fig. 3

Phylogenetic relationship of the intron/exon structure of SnRK2 genes from pear and Arabidopsis thaliana. a A phylogenetic tree constructed with CluxtalX2.0 using the full-length amino acid sequences of SnRK2 genes from pear and Arabidopsis. Bootstrap analysis was performed using 1000 replicates. The species in which SnRK2 proteins were functionally characterized are displayed as icons, and the different colors in the branches represent the different subfamilies. b The tangerine boxes, black lines, and light-green boxes in the gene structural diagram represent exons, introns, and UTRs, respectively. Gene models are drawn to scale, as indicated at the bottom