Table 2.
Characteristics for the quantitative trait loci of resistance to Verticillium albo-atrum detected in LR3, LR4, and LR5 recombinant inbred line populations [R] and [S] indicate resistant and susceptible parental lines, respectively. h2, broad sense heritability; (H), narrow sense heritability; LOD, logarithm of odd score; QTL, quantitative trait locus.
Cross | Trait | Trait heritability h2 (H) | Chromosome | Nearest marker | Peak LOD score | Peak (cM) | 1–LOD support interval (cM) | QTL effect | Percentage of phenotypic variance | Percentage of additive variance |
---|---|---|---|---|---|---|---|---|---|---|
LR3: F83005.5 [S] × DZA45.5 [R] | Percentage of dead plants | 0.32 (0.19) | 2 | EM4.250 | 6.0 | 196 | 193–197 | –0.095 | 22.0 | 36 |
6 | mtic343 | 3.6 | 142 | 133–154 | –0.067 | 18 | ||||
LR4: A17 [R] × DZA315.16 [S] | Maximum disease index | 0.33 (0.20) | 7 | mtic432 | 11.1 | 60 | 55–70 | 0.41 | 32.2 | 92 |
AUDPC | 0.31 (0.18) | 7 | mtic273 | 12.3 | 58 | 55–70 | 0.0022 | 32.9 | 83 | |
Percentage of dead plants | 0.46 (0.29) | 7 | mtic82 | 5.7 | 76 | 65–78 | 0.0907 | 20.6 | 32 | |
LR5: A17 [R] × F83005.5 [S] | Maximum disease index | 0.32 (0.19) | 7 | MTE85 | 22.6 | 58 | 54–61 | 0.5093 | 39.4 | 99 |
AUDPC | 0.32 (0.19) | 7 | MTE85 | 26.1 | 58 | 54–61 | 0.0028 | 42.5 | 99 | |
Percentage of dead plants | 0.65 (0.48) | 7 | MTE85 | 14.9 | 65 | 56–68 | 0.1973 | 29.3 | 48 |