Table 3. Quantitative trait loci (QTL) in the GADH population associated with heading date, plant height, and disease severity combined across years, using the standard interval mapping (SIM) approach with three major phenology genes as covariates for SNB resistance.
| Trait | QTL | LG | cM | Confidence interval (cM) | LOD | P-value | PVE (%) | Allele effecta |
|---|---|---|---|---|---|---|---|---|
| PH | Qncb.ph-2Dc | 2D | 53 | 32–63 | 4.6 | 0.0044 | 33.2 | 3.6 |
| Qncb.ph-7Ac | 7A.2 | 84 | 8–130 | 3.3 | 0.0390 | 3.8 | 1.3 | |
| LS | Qncb.snl-1Ac | 1A | 4 | 0–36 | 5.7 | 0.0000 | 10.2 | 0.3 |
| Qncb.snl-1Bc | 1B | 11 | 0–30 | 3.3 | 0.0322 | 6.7 | 0.3 | |
| Qncb.snl-5Ac | 5A.1 | 201 | 10–201 | 3.5 | 0.0216 | 4.0 | -0.2 | |
| Qncb.snl-6Bc | 6B | 43 | 35–279 | 3.7 | 0.0146 | 11.8 | 0.3 | |
| GS | Qncb.sng-1Ac | 1A | 36 | 0–48 | 7.2 | 0.0000 | 11.8 | 0.4 |
| Qncb.sng-1Bc | 1B | 20 | 0–51 | 4.6 | 0.0022 | 5.6 | 0.3 |
Abbreviations: LG = linkage group; cM = centimorgan; HD = heading date (days); PH = plant height (cm); LS = leaf severity (1–9 scale); GS = glume severity (0–9 scale). LOD = logarithm of the odds at 0.05 probability level, using a 5,000-iteration permutation test; PVE = percentage of phenotypic variance explained.
aEstimated allele effect reported in terms of the AGS2033 allele. The estimated allele effect unit corresponds to each trait unit.
c = covariate.