TABLE 5

QTL and their main effects detected in the doubled-haploid population (DH lines), the midparent heterosis values (MPH), and the testcross hybrid population (TC hybrids)

DH linesMPHTC hybrids
QTLaLGIntervalPosbLODEffectVpcPosLODEffectVpPosLODEffectVp|d/a|d
Grain yield (GY)
GyN5N5E32M47_447R–E35M62_249E99.49.1−0.14***4.3
GyN6N6Ra2F04b–CB1003094.84.20.05*NE94.83.40.09***2.51.9
GyN7N7CB10439–MR153b6.017.70.13***3.4
GyLg10LG10E34M47_185R–E45M60_234E28.33.50.10***2.7
GyN12N12Na12E04b–Na12A01b34.217.60.20***9.131.65.50.13***5.20.7
GyN13N13CB10427–E35M47_105E139.07.30.14***4.4141.07.20.16***7.91.2
GyN17N17MR127–Ni4A07b16.011.00.09***1.8
GyN19N19E32M49_400E–CB10357a0.07.00.11***2.7
Total:25.718.3
Thousand-kernel weight (TKW)
TkwN1N1CB10597–E32M51_340R108.25.9−0.11***8.4(0.06)114.24.2−0.05***3.00.5
TkwN3N3MR12–E32M47_292R59.33.50.06***5.466.55.4−0.06***5.0
TkwN5N5MR119–MD2168.63.50.06***2.4
TkwN7N7MR153b–MD20a17.08.7−0.10***7.0(0.03)17.010.0−0.07***5.80.3
TkwN11N11CB10536–CB10357b0.04.30.06***2.7(0.00)0.010.10.06***4.60.0
TkwN12N12E35M62_117E–Na12E04b31.65.4−0.08***4.1
TkwN13N13E32M47_328E–E42M60_256E115.64.3−0.05***3.3
TkwN16N16MR133.1–CB1023485.35.90.08***3.9
TkwN19N19Ni4A07a–CB10109a70.97.3−0.09***12.0
Total:28.517.421.7
Seeds per silique (S/Sil)
S/SilN5N5MD21–MR11370.114.1−1.36***6.8(0.19)66.69.9−1.55***11.80.1
S/SilN11N11CB10536–CB10357b4.015.6−1.49***8.20.04.9−1.20***5.20.8
S/Sil0N19N19CB10345–Na10B11b56.56.10.99***3.652.04.00.66*NE0.7
Total:18.65.211.8
Siliques per square decimeter (Sil/dm2)
Sil/dm2N3N3E32M51_283E–MR1235.510.72.88***12.0
Sil/dm2Lg10LG10E34M47_185R–E45M60_234E28.37.71.75***4.4
Sil/dm2N7N7CB10439–MR153b0.07.32.64***8.8
Sil/dm2N9N9CB10533a–MR23010.16.4−1.15***1.9
Sil/dm2N11N11MD60a–Ol10E129.54.71.40***2.9
Sil/dm2N12aN12CB10022a–MR10410.27.7−1.79***6.1
Sil/dm2N12bN12E35M62_117E–Na12E04b33.614.33.22***15.0
Sil/dm2N16N16CB10211b–CB1063218.46.61.98***5.7
Total:48.08.8
  • Significance is shown at *P = 0.05 and ***P = 0.001. Values in parentheses were calculated from the effects of this locus detected with the other data sets.

  • a Gy, Tkw, S/sil, and Sil/dm2 indicate QTL for grain yield (tons per hectare), thousand-kernel weight (grams), seeds per silique, and siliques per square decimeter, respectively. N or LG followed by a number designates the linkage group where the QTL was detected.

  • b Positions are measured from the beginning of the linkage group in centimorgans (Haldane).

  • c Vp, percentage of explained phenotypic variance; NE, not estimated, in the case of putative QTL.

  • d |d/a|, dominance ratio.