Fig. 1From: New insights into the evolution of SPX gene family from algae to legumes; a focus on soybeanEvolution and frequency of genes in different SPX classes from algae to current Angiosperms. The species tree was constructed based on protein sequences of identified SPXs. Types of classes are shown in different colored boxes, the numbers in boxes represent the number of identified genes in each class while the total number of identified SPXs in each species is written in red on the branchesBack to article page