Table 8.
Summary of epistatic QTLs detected for seed protein content (SPC), 100-seed weight (SW), seed yield (SY), days to first flowering (DFF) and growth habit (GH) in five F2 mapping populations of pigeonpea. Pop1: ICP 11605 × ICP 14209, Pop2: ICP 8863 × ICP 11605, Pop3: HPL 24 × ICP 11605, Pop4: ICP 8863 × ICPL 87119, Pop5: ICP 5529 × ICP 11605. E-QTLs: epistatic QTLs, PVE: phenotypic variation explained. Number in parenthesis represents numbers of major E-QTLs (PVE% ≥ 10.0%), PVE: phenotypic variation explained by a QTL, LOD: Logarithm of odds.
| Population | E-QTL features | SPC | SW | SY | DFF | GH |
|---|---|---|---|---|---|---|
| Pop1 | Number of E-QTLs | 11 (11) | 8 (8) | 29 (29) | 5 (5) | 40 (1) |
| LOD | 5.1–6.6 | 5.0–5.6 | 5.1–8.2 | 5.0–5.5 | 9.4–79.6 | |
| PVE (%) | 12.8–31.2 | 14.6–25.3 | 12.9–38.5 | 10.4–33.4 | 10.9–91 0.3 | |
| Pop2 | Number of E-QTLs | 9 (9) | 63 (63) | 19 (19) | 26 (26) | 56 (56) |
| LOD | 5.2–7.5 | 6.6–17.1 | 5.0–7.3 | 5.0–8.9 | 5.0–1132.5 | |
| PVE (%) | 55.0–69.8 | 29.8–41.8 | 10.6–36.4 | 14.8–44.3 | 10.4–99.4 | |
| Pop3 | Number of E-QTLs | 2 (2) | 53 (53) | 30 (30) | 10 (6) | 50 (50) |
| LOD | 5.2–5.3 | 5.0–9.9 | 5.0–8.5 | 5.0–6.2 | 5.1–41.8 | |
| PVE (%) | 19.3–21.2 | 14.6–39.8 | 14.6–37.1 | 6.3–14.6 | 14.1–96.0 | |
| Pop4 | Number of E-QTLs | 8 (7) | 20 (20) | 12 (12) | 12 (12) | — |
| LOD | 5.0–6.3 | 5.1–7.0 | 5.1–7.2 | 5.1–6.2 | — | |
| PVE (%) | 9.8–30.5 | 14.2–25.6 | 12.0–23.8 | 12.0–30.1 | — | |
| Pop5 | Number of E-QTLs | 4 (3) | 20 (20) | 39 (39) | 5 (5) | 42 (42) |
| LOD | 5.2–6.9 | 5.1–7.3 | 5.0–8.7 | 5.1–7.0 | 5.1–16.6 | |
| PVE (%) | 9.5–21.2 | 11.5–30.0 | 15.9–35.1 | 14.7–23.6 | 10.6–74.8 |