TABLE 3.
Classification of A. oryzae RIB strains based on PCR amplification patterns of aflatoxin biosynthesis gene homologs
| Classification | Aflatoxin biosynthesis genes amplified by PCRa | No. of strainsb | Ratio (%) |
|---|---|---|---|
| Group 1 | aflT, nor-1, aflR, norA, avnA, verB, vbs | 122 | 58.1 |
| Group 2 | avnA, verB, vbs | 77 | 36.7 |
| Group 3 | verB, vbs or vbs | 9 | 4.3 |
| Others | No shared patterns | 2 | 0.9 |
a
Amplification of seven homologous aflatoxin biosynthesis genes was examined.
b
A total of 210 A. oryzae RIB strains were used in this study, details of which are available at the NRIB website described in Materials and Methods.