Table 4.
Segregation analysis of introgression line F2 progeny
| IL | Genotypea | Infection freq.b | P valuec | % var.d | Lesion diameter (mm)e | P value | % var. |
|---|---|---|---|---|---|---|---|
| 1B | +/+ | 6.9 (17) | – | 21.4 | 6.2 (17) | – | 11.0 |
| +/S | 4.9 (30) | 0.0226 | 5.3 (26) | 0.1003 | |||
| S/S | 2.8 (8) | 0.0009 | 4.4 (6) | 0.0318 | |||
| 9A | +/+ | 4.9 (27) | – | 4.0 | 6.6 (24) | – | 6.0 |
| +/S | 5.5 (17) | 0.1952 | 6.8 (17) | 0.6163 | |||
| S/S | 3.8 (10) | 0.3458 | 5.9 (8) | 0.2039 | |||
| 11C | +/+ | 4.7 (21) | – | 3.8 | 5.2 (17) | – | 6.6 |
| +/S | 5.8 (28) | 0.1977 | 6.4 (27) | 0.0580 |
a+/+ is homozygous for cv. VF36 allele, S/S is homozygous for S. lycopersicoides allele, and +/S is heterozygous
bInfection frequency is the mean number of expanding lesions per leaf (10 inoculation droplets per leaf); values in parentheses are the numbers of F2 progeny of each genotype included in the statistical analysis
cP values compare the +/S or S/S genotypes against the +/+ genotype
dPercentage of phenotypic variation explained by each QTL in each F2 population
eLesion diameter is the mean diameter in mm of leaf lesions; values in parentheses are the numbers of F2 progeny of each genotype included in the statistical analysis