Exon-intron structures of all SlGST genes.

Schematic diagram represents the gene structure of all 90 SlGST genes identified in this study using Gene Structure Display Server (http://gsds1.cbi.pku.edu.cn/). Exons are shown as green boxes; introns are shown as black lines; and upstream/downstream are shown as blue boxes. 0 indicates an intron located between two consecutive codons, 1 indicates splitting codons between the first and second nucleotides, and 2 indicate an intron inserted into the second base of a codon. The relative size of the full transcript, intron, and exon could be inferred from the scale provided below in kilo base pair, kb.