Figure 6. Phylogenetic relationships between the rice peroxidase genes used to design primers and peroxidase genes sequenced in this study. The tree was constructed with CLUSTAL W algorithm nested in Vector NTI Suite Software Version 8.0 (Invitrogen Corp., Carlsbad, CA). The rice peroxidase cDNA sequences were obtained from the National Center for Biotechnology Information website (http://www.ncbi.nlm.nih.gov/).