Table 4.
Quantitative trait loci (QTL) detected on different chromosomes by inclusive composite interval mapping analysis for resistance to charcoal rot in two F2:3 biparental mapping populations.
| Population | QTL | Ch | Ch bin | Position, cm | Marker interval | Physical position (B73_V2) (LM) | Physical position (RM) | LOD | PVE (%) | Total PVE% | Additive effect | Dominant effect | D/A | Gene action |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MSR | qMSR3 | 3 | 3.09 | 101 | PZA03391_1–ZA00316_10 | 219,859,920 | 223,513,639 | 3.1 | 5.72 | 23.54 | −0.1724 | 0.007 | −0.04 | A |
| qMSR4 | 4 | 4.02–4.03 | 15 | PHM3963_33–PHM259_7 | 5,459,125 | 14,326,036 | 2.77 | 6.49 | −0.143 | −0.1522 | 1.06 | D | ||
| qMSR6 | 6 | 6.02–6.03 | 17 | PHM12904_7–S6_103513378 | 88,691,499 | 103,513,378 | 3.26 | 5.65 | −0.1685 | 0.0012 | −0.01 | A | ||
| qMSR8 | 8 | 8.06–8.07 | 59 | PZA01964_29–PHM4757_14 | 166,984,405 | 151,452,567 | 6.42 | 13.86 | −0.2651 | −0.0721 | 0.27 | PD | ||
| FMSR | qFMSR6 | 6 | 6.03–6.04 | 26 | PZA01029_1–S6_103513510 | 114,031,392 | 103,513,510 | 3.298 | 6.56 | 10.48 | −0.2115 | −0.0393 | 0.185 | D |
| qFMSR7 | 7 | 7.03 | 37 | PZA02643_1–PZA03166_1 | 128,365,318 | 137,632,654 | 3.223 | 6.51 | −0.2068 | 0.0357 | −0.17 | D |
Ch, chromosome; LOD, likelihood odds; PVE, phenotypic variation explained; A, additive effect; D, dominant effect; PD, partially dominant.
The QTLs represented in bold show QTLs that had LOD scores above the LOD threshold based on 1,000 permutations, and the ones in normal fonts are the ones that were above LOD threshold of 2.5.