Table 6.
Estimation of QTL effects under three different constitutions of mapping population
| QTL (heritability %) | Population | Position | A | D | AE1 | AE2 | AE3 | DE1 | DE2 | DE3 | Power |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Q1 (11.03) | Expected | a)44.0 | −2.78 | −3.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| I | b)43.83(3.06) | −2.64(0.36) | −2.88(0.55) | 0.01(0.79) | −0.05(0.82) | 0.05(0.84) | −0.06(0.27) | −0.00(0.18) | 0.06(0.29) | 97.5 | |
| II | 44.05(2.75) | −2.63(0.43) | −2.79(0.65) | 0.04(0.90) | −0.06(0.89) | 0.02(0.93) | −0.14(0.45) | 0.03(0.30) | 0.10(0.45) | 100 | |
| III | 44.13(2.18) | −2.64(0.53) | −2.91(0.67) | −0.09(0.90) | −0.02(0.85) | 0.10(0.91) | −0.11(0.64) | 0.03(0.54) | 0.08(0.60) | 100 | |
| Q2 (7.68) | Expected | 75.0 | 0.00 | 2.45 | −2.00 | −0.70 | 2.70 | 0.00 | 0.00 | 0.00 | |
| I | 75.61(2.77) | 0.00(0.32) | 2.36(0.33) | −1.89(1.00) | −0.66(1.03) | 2.54(1.04) | −0.01(0.16) | 0.00(0.14) | 0.01(0.15) | 99 | |
| II | 75.33(2.98) | 0.02(0.32) | 2.36(0.39) | −1.79(1.04) | −0.67(1.00) | 2.49(1.08) | −0.05(0.29) | 0.01(0.31) | 0.03(0.30) | 99 | |
| III | 75.14(2.71) | −0.03(0.45) | 2.34(0.49) | −1.95(1.06) | −0.63(1.02) | 2.60(1.17) | −0.05(0.65) | 0.02(0.69) | 0.03(0.68) | 100 | |
| Q3 (16.53) | Expected | 50.0 | 2.90 | 3.52 | 2.60 | −1.30 | −1.30 | 0.00 | 0.00 | 0.00 | |
| I | 49.95(0.65) | 2.90(0.28) | 3.26(0.64) | 2.55(0.91) | −1.32(0.92) | −1.16(0.89) | 0.28(0.54) | −0.02(0.23) | −0.26(0.52) | 99.5 | |
| II | 49.98(0.83) | 2.93(0.29) | 3.04(0.80) | 2.65(0.97) | −1.32(0.89) | −1.28(0.92) | 0.44(0.76) | −0.04(0.33) | −0.40(0.69) | 100 | |
| III | 50.00(0.77) | 2.94(0.37) | 2.89(0.91) | 2.53(1.07) | −1.25(0.98) | −1.24(1.06) | 0.68(1.05) | −0.08(0.66) | −0.59(1.00) | 100 | |
| Q4 (12.65) | Expected | 73.0 | −3.31 | −1.87 | 0.00 | 0.00 | 0.00 | −2.10 | 2.50 | −0.40 | |
| I | 74.18(2.97) | −3.10(0.51) | −1.72(0.41) | −0.00(0.64) | −0.03(0.71) | 0.02(0.69) | −1.89(0.46) | 2.28(0.51) | −0.36(0.34) | 100 | |
| II | 74.12(2.52) | −3.15(0.48) | −1.80(0.39) | 0.02(0.75) | 0.00(0.73) | −0.04(0.72) | −1.94(0.52) | 2.30(0.56) | −0.35(0.42) | 100 | |
| III | 74.38(2.12) | −3.21(0.46) | −1.84(0.49) | −0.15(0.77) | 0.05(0.82) | 0.09(0.78) | −1.87(0.69) | 2.29(0.72) | −0.39(0.64) | 100 | |
| Q5 (2.36) | Expected | 15.0 | 1.92 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| I | 14.54(3.90) | 1.82(0.29) | −0.16(0.61) | −0.01(0.76) | 0.02(0.78) | 0.01(0.79) | 0.20(0.45) | −0.03(0.23) | −0.17(0.43) | 90.5 | |
| II | 14.21(4.14) | 1.86(0.29) | −0.24(0.60) | 0.09(0.81) | 0.04(0.77) | −0.12(0.79) | 0.21(0.49) | −0.04(0.27) | −0.17(0.48) | 74.5 | |
| III | 15.52(4.89) | 1.93(0.40) | −0.06(0.62) | −0.11(0.78) | 0.03(0.97) | 0.09(0.87) | 0.32(0.78) | 0.01(0.72) | −0.33(0.79) | 42.0 |
a)
True values of QTL parameter;
b)
estimates of QTL parameter and standard deviation in parenthesis; A, D, AE, DE denote the estimates of QTL additive, dominance effects and their interaction effects with environments, respectively; I,II and III represent three different constitutions of population, 300 (150 from DH×P1 and 150 from DH×P2), 300 (100 from DH×P1 and 200 from DH×P2) and 300 (50 DH×P1 and 250 from DH×P2), respectively.