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Gene structure analysis of SOD genes from M. truncatula, Arabidopsis, and rice based on phylogenetic relationship. Left: phylogenetic analysis for the SOD proteins from Arabidopsis, rice, and M. truncatula. Right: structural features of the SOD genes from Arabidopsis, rice, and M. truncatula were examined using the online tool GSDS. Lengths of introns, exons, and upstream/downstream of each SOD gene are proportionally presented
