Table 1. Detection of leaf shape QTLs by the linkage disequilibrium analysis of microsatellite markers in a natural population of poplar.
| PC (%explained) | Microsatellite marker | Effect, P-value | q | p | D | LD, P-value |
|---|---|---|---|---|---|---|
| PC1 (47.3) | GCPM_1063 | 1.01 × 10−10 | 0.74 | 0.49 | 0.12 | 1.77 × 10−15 |
| GCPM_1026-1 | 2.42 × 10−10 | 0.31 | 0.43 | −0.12 | 2.42 × 10−13 | |
| GCPM_1093-1 | 1.93 × 10−5 | 0.43 | 0.47 | −0.05 | 1.57 × 10−3 | |
| PC3 (6.7%) | GCPM_1063 | 1.88 × 10−8 | 0.81 | 0.51 | 0.09 | 2.94 × 10−13 |
| GCPM_1064-1 | 1.68 × 10−5 | 0.44 | 0.43 | −0.05 | 8.20 × 10−6 | |
| GCPM_1-1 | 3.42 × 10−4 | 0.73 | 0.56 | 0.08 | 1.72 × 10−11 | |
| PC4 (5.1%) | GCPM_1063 | 1.14 × 10−7 | 0.77 | 0.51 | 0.13 | 0 |
| GCPM_1026-1 | 9.56 × 10−7 | 0.60 | 0.23 | 0.07 | 4.64 × 10−13 | |
| GCPM_1034-1 | 8.54 × 10−4 | 0.45 | 0.14 | −0.06 | 3.49 × 10−7 | |
| PC5 (3.5%) | GCPM_1063 | 3.55 × 10−7 | 0.79 | 0.51 | 0.10 | 0 |
| GCPM_1064-1 | 1.63 × 10−4 | 0.72 | 0.43 | 0.11 | 0 | |
| GCPM_1025-1 | 4.95 × 10−4 | 0.73 | 0.44 | 0.11 | 0 | |
| PC6 (2.3%) | GCPM_1053-1 | 2.11 × 10−4 | 0.26 | 0.49 | −0.12 | 0 |
Abbreviations: D, linkage disequilibrium between the marker and QTL; p, allele frequency of a marker; q, allele frequency of a QTL detected by the marker.
The effects of QTLs are tested by hypothesis (13), and the LD between markers and QTLs tested by hypothesis (14).