However, it did not show resistance to the strain collected in 2006 (strain-Japan-KG-06). “Japan-KG-06” is considered to be a BPH2-virulent biotype, because cultivars with the BPH2 gene have been used in Southeast Asia, and the virulent biotype has been dominated in these regions. Nevertheless, BPH26 showed resistance to BPH “Japan-KG-06” because of the coexistence of BPH25, although neither BPH26 nor BPH25 showed resistance to this strain11. Thus, the BPH2 gene, which has lost its resistance, can be reused along with other genes, such as BPH25.