Table 1.
Race structure of Fusarium oxysporum f. sp. cubense by vegetative compatibility group (VCG) (Bentley et al., 1995, 1998; Gerlach et al., 2000; Groenewald et al., 2006; Jones, 2000; Katan and Di Primo, 1999; Moore et al., 1993; Ploetz, 1994; Ploetz and Correll, 1988).
| VCG | VCG complex | Race |
|---|---|---|
| 0120 | 0120–01215 | STR4 |
| 0121 | None | R4 * |
| 0122 | None | R4 * |
| 0123 | None | 1 |
| 0124 | 0124–0125–0128–01220 | 1, 2 |
| 0125 | 0124–0125–0128–01220 | 1, 2 |
| 0126 | None | R1/R4 † |
| 0127 | N/A | No longer valid ‡ |
| 0128 | 0124–0125–0128–01220 | 1, 2 |
| 0129 | 0129–01211 | STR4 |
| 01210 | None | 1 |
| 01211 | 0129–01211 | STR4 |
| 01212 | None | Undetermined |
| 01213 | 01213–01216 | TR4 § |
| 01214 | None | 2 |
| 01215 | 0120–01215 | STR4 |
| 01216 | 01213–01216 | TR4 § |
| 01217 | None | 1 |
| 01218 | None | 1 |
| 01219 | None | Undetermined |
| 01220 | 0124–0125–0128–01220 | 1 |
| 01221 | None | Undetermined |
| 01222 | None | Undetermined |
| 01223 | None | Undetermined |
| 01224 | None | Undetermined |
*The subclassification of VCGs 0121 and 0122 to either TR4 or STR4 is ambiguous as there are reports that these VCGs cause disease on Cavendish in tropical conditions; however, it has been observed that these VCGs are less aggressive than isolates of VCG 01213/16 (Buddenhagen, 2009; Moore et al., 1993; O'Neill et al., 2011).
†The race of VCG 0126 is ambiguous as isolates from VCG 0126 demonstrate many traits associated with race 4, such as the production of odoratum on medium and a close genetic relationship to other VCGs of race 4. However, there is limited evidence to suggest that it is capable of infecting Cavendish and it is commonly referred to as race 1 based on its host range (Pegg et al., 1994).
‡VCG 0127, originally reported by Ploetz and Correll (1988), is no longer considered to be valid (Ploetz, 1994).
§VCG 01213 and 01216 are now considered to be the same VCG complex (VCG 01213/16) (Bentley et al., 1998).