Fig. 1

Phylogenetic tree of ALDH proteins from G. max (Gm), A. thaliana (At), O. sativa (Os), P. vulgaris (Pv), and M. truncatula (Mt). Alignment of 145 ALDH protein sequences from five plant species was conducted with ClustalW2, and the phylogenetic tree was constructed using MEGA 5.2 based on the Neighbor-joining (NJ) method. Bootstrap values in percentage (1000 replicates) are labeled on the nodes