Table 4.
Quantitative trait loci (QTLs) for the number of disease incidence (DI), fibrous roots (NFR), the root surface covered with fibrous roots (RFR), and the Plasmodiophora brassicae content in roots (PCR) in Brassica oleracea.
| QTL | Chromosome | Peak pos. (cM) | Confidence interval (cM) |
Left marker | Right marker | LOD score | Genetic effects∗ |
Phenotypic variation explained (%) | ||
|---|---|---|---|---|---|---|---|---|---|---|
| aF | aM | d | ||||||||
| DIC.I-1 | 8 | 67 | 64.5–69.5 | swucp-1098 | swucp-1097 | 6.91 | 0.03 | 0.14 | 0.02 | 17.66 |
| NFR.I-1 | 2 | 53 | 52.5–54.5 | swucp-225 | swucp-221 | 6.79 | -0.05 | 0.01 | -0.31 | 10.46 |
| NFR.I-2 | 2 | 109 | 107.5–110.5 | swucp-124 | swucp-121 | 6.49 | -0.06 | 0.04 | -0.29 | 9.8 |
| NFR.I-3 | 4 | 15 | 14.5–17.5 | swucp-632 | swucp-633 | 7.22 | 0.04 | -0.03 | 0.32 | 11.29 |
| NFR.I-4 | 4 | 71 | 66.5–74.5 | swucp-598 | swucp-595 | 4.62 | 0.01 | 0.01 | -0.27 | 7.92 |
| NFR.I-5 | 6 | 91 | 86.5–92.5 | swucp-738 | swucp-731 | 8.3 | 0.21 | -0.28 | 0.05 | 14.71 |
| PCR.I-1 | 3 | 88 | 86.5–89.5 | swucp-386 | swucp-385 | 4.4 | -3.69 | 3.69 | 10.54 | 12.98 |
| PCR.I-2 | 6 | 89 | 85.5–92.5 | swucp-738 | swucp-731 | 5.58 | -3.97 | 13.26 | -0.09 | 17.76 |
| DIC.II-1 | 8 | 64 | 62.5–67.5 | swucp-1101 | swucp-1098 | 7.28 | 0.00 | 0.16 | 0.02 | 14.8 |
| NFR.II-1 | 1 | 6 | 5.5–6.5 | swucp-105 | swucp-91 | 4.6 | 0.06 | -0.19 | 0.11 | 6.1 |
| NFR.II-2 | 2 | 75 | 74.5–75.5 | swucp-157 | swucp-156 | 5.21 | 0.04 | -0.01 | -0.3 | 8.06 |
| NFR.II-3 | 3 | 50 | 48.5–50.5 | swucp-330 | swucp-329 | 5.35 | -0.01 | -0.29 | -0.04 | 7.58 |
| NFR.II-4 | 4 | 134 | 130.5–136.5 | swucp-529 | swucp-528 | 10.71 | 0.13 | -0.01 | 0.41 | 16.74 |
| NFR.II-5 | 6 | 83 | 79.5–83.5 | swucp-742 | swucp-736 | 9.68 | 0.01 | -0.41 | 0.02 | 15.49 |
| NFR.II-6 | 7 | 0 | 0.0–3.5 | swucp-1013 | swucp-1011 | 4.53 | -0.03 | -0.09 | -0.24 | 6.13 |
| NFR.II-7 | 7 | 102 | 100.5–102.5 | swucp-887 | swucp-879 | 4.94 | 0.25 | 0.08 | 0.06 | 6.7 |
| NFR.II-8 | 8 | 69 | 64.5–69.5 | swucp-1098 | swucp-1097 | 6.83 | 0.05 | -0.32 | 0.05 | 10.17 |
| PCR.II-1 | 2 | 75 | 74.5–75.5 | swucp-157 | swucp-156 | 7.29 | -2.9 | 0.43 | 13.33 | 12.02 |
| PCR.II-2 | 3 | 50 | 48.5–50.5 | swucp-330 | swucp-329 | 5.96 | 0.05 | 11.39 | 2.07 | 9.04 |
| PCR.II-3 | 4 | 134 | 130.5–136.5 | swucp-529 | swucp-528 | 7.15 | -3.83 | 1.39 | -12.03 | 11.07 |
| PCR.II-4 | 6 | 83 | 79.5–83.5 | swucp-742 | swucp-736 | 10.31 | -0.5 | 15.26 | -2.57 | 17.49 |
| PCR.II-5 | 6 | 93 | 86.5–94.5 | swucp-738 | swucp-731 | 5.28 | -10.86 | 0.74 | -0.14 | 7.97 |
| PCR.II-6 | 8 | 67 | 64.5–69.5 | swucp-1098 | swucp-1097 | 7.01 | 0 | 12.64 | 0.8 | 11.11 |
∗aF and aM represent the additive genetic effects of ‘GZ87’ and ‘263,’ respectively; d represents dominant effects.