Fig. 1

Phylogenetic tree of the OSCA gene family in mung bean, soyean, Arabidopsis and rice. The neighbor-joining tree was generated through the MEGA7 program using the amino acid sequences of the OSCA proteins by the neighbor-joining (NJ) method, with 1000 bootstrap replicates. The four major phylogenetic clades (1 to 4) are labelled and the OSCAs from different species are denoted by different colored backgrounds