TABLE 3.
Phenotypes of transformants containing constructs of naturally occurring het-c allelesa
| Allele | C9-2 (PA) | C2-2-9 (OR) | FGSC2193 (GR) |
|---|---|---|---|
| het-cPA-like | |||
| Nc1130 | C | I2 | Cb |
| Nc6583 | C | I2 | C |
| Ni4832 | C | I2 | C |
| Nt2316 | C | I2 | C |
| Ndi5923 | I2 | I2 | I2 |
| Np7221 | C | I2 | C |
| Gsp8243 | C | I2 | C |
| Ss2740 | C | I2 | C |
| het-cGR-like | |||
| Ndi6788 | I2 | I2 | C |
| Nc1945 | I2 | I2 | C |
| Nc1455 | I2 | I2 | C |
| Ss2741 | I2 | I2 | C |
| Sh7140 | I2 | I2 | C |
| Ndo1692 | I2 | I2 | C |
| het-cOR-like | |||
| Ni3721 | I3 | C | I3 |
| Nc1824 | I3 | C | I3 |
| Ndi6793 | I3 | C | I3 |
| Sb1903 | I3 | C | I3 |
| Gsp8241 | I3 | C | I3 |
| Gsp8239 | I3 | C | I3 |
| Sh2739 | I3 | C | I3 |
| Gsp8242 | I3 | C | I3 |
| Ns5940 | I3 | C | I3 |
| Ni1799 | I3 | C | I3 |
a
I2, incompatible transformants with an LGR of 1 to 2.5 cm/day showing ∼20 to 30% HCD; I3, severely incompatible transformants with an LGR of <1 cm/day showing 20 to 30% HCD; C, fully compatible transformants with an LGR of 4 to 6.5 cm/day with <1% HCD.
b
Transformation results (39) and analysis of partial diploid progeny (24) indicate that strain FGSC2193 has a recessive allele-specific suppressor for het-c incompatibility. FGSC2193 and C9-2 are not isogenic strains and probably differ not only in het genotype but also at a large number of other loci that may affect the morphological phenotype associated with het-c vegetative incompatibility.