Table 4. Genome-wide association of 13 tested traits under the normal condition (NC) and the PEG-induced, simulated drought-stress condition (SC) detected using general linear (GLM) and mixed linear (MLM) models. For trait abbreviations see Table 1.
| Trait | GLM | MLM | No. Sharec | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No.siga | Average -log(P) | Range -log(P) | Average R2 (%)b | Range R2 (%) b | No.siga | Average -log(P) | Range -log(P) | Average R2 (%) b | Range R2 (%)b | |||
| NC | FRS | 31 | 4.476 | 3.843-5.522 | 4.958 | 4.183-6.240 | 1 | 3.970 | 4.732 | 1 | ||
| RD | 9 | 4.055 | 3.884-4.334 | 4.367 | 4.160-4.702 | |||||||
| RDW | 1 | 4.314 | 4.891 | |||||||||
| RFW | 28 | 4.555 | 3.873-6.217 | 5.087 | 4.243-7.128 | |||||||
| RL | 16 | 4.734 | 3.866-7.607 | 4.912 | 3.896-8.144 | |||||||
| RT | 12 | 4.635 | 3.858-5.551 | 4.674 | 3.866-6.016 | 1 | 3.980 | 4.805 | ||||
| SDW | 5 | 4.703 | 3.855-6.332 | 4.983 | 3.983-6.860 | 1 | 4.040 | 4.803 | 1 | |||
| SFW | 7 | 4.564 | 3.878-6.596 | 4.883 | 4.074-7.277 | 2 | 4.122 | 4.109-4.136 | 4.932 | 4.912-4.951 | 2 | |
| SH | 1 | 3.932 | 4.410 | |||||||||
| TDW | 9 | 4.567 | 3.901-6.883 | 4.826 | 4.044-7.508 | 1 | 4.217 | 5.033 | 1 | |||
| TFW | 21 | 4.763 | 3.875-6.930 | 5.116 | 4.062-7.653 | 2 | 3.893 | 3.857-3.930 | 4.566 | 4.516-4.616 | 2 | |
| TNOR | 11 | 4.701 | 3.873-5.462 | 4.728 | 3.780-5.896 | 1 | 3.945 | 4.760 | 1 | |||
| SC | DRS | 1 | 4.238 | 7.197 | ||||||||
| FRS | 1 | 4.242 | 4.588 | |||||||||
| RD | 8 | 5.628 | 3.875-7.932 | 6.569 | 4.319-9.367 | 6 | 5.793 | 3.844-6.505 | 8.140 | 4.995-9.211 | 5 | |
| RDW | 6 | 4.184 | 3.959-5.076 | 4.404 | 4.129-5.395 | |||||||
| RT | 1 | 3.967 | 4.460 | |||||||||
| SFW | 1 | 3.991 | 4.339 | |||||||||
| TDW | 8 | 4.561 | 4.006-5.631 | 4.898 | 4.238-6.162 | 2 | 4.087 | 3.992-4.183 | 4.857 | 4.725-4.989 | 2 | |
| TFW | 6 | 4.447 | 3.868-5.290 | 4.792 | 4.112-5.796 | 3 | 4.678 | 4.089-4.973 | 5.637 | 4.813-6.049 | 3 | |
| TNOR | 1 | 4.148 | 4.708 | |||||||||
| DI | DRS | 1 | 4.639 | 5.288 | 1 | 5.286 | 9.930 | 1 | ||||
| FRS | 7 | 4.264 | 3.868-5.330 | 4.965 | 4.370-6.229 | |||||||
| RD | 3 | 4.432 | 4.432-4.432 | 5.154 | 5.154-5.154 | 3 | 4.225 | 4.225-4.225 | 5.133 | 5.133-5.133 | 3 | |
| RL | 1 | 4.425 | 4.979 | 1 | 3.848 | 4.513 | 1 | |||||
| RT | 3 | 4.323 | 3.872-4.906 | 5.228 | 4.415-6.447 | 1 | 4.401 | 5.838 | 1 | |||
| SDW | 5 | 4.850 | 4.421-5.085 | 5.625 | 5.064-5.907 | |||||||
| TDW | 2 | 4.274 | 4.059-4.490 | 4.902 | 4.604-5.199 | |||||||
| TNOR | 3 | 4.366 | 3.982-4.872 | 5.280 | 4.554-6.395 | 1 | 4.396 | 5.818 | 1 | |||
| Total | 208 | 28 | 25 | |||||||||
a
Total number of significantly associated SNPs detected by GLM and MLM at the threshold of -log10 p = 3.839
b
R2 value showing the percentage of explained phenotypic variation
c
Number of significant SNPs detected by both models