TABLE 7

Digenic epistatic QTL affecting F1 performance and HMP of GY (in t/ha) and BY (t/ha) detected in the LT and TQ BCF1 and two testcross F1 populations

F1HMP
TraitChromosomeInterval iChromosomeInterval jLODaIajaaijR2 (%) LODaIajaaijR2 (%)
LTBY1R210–RZ3822RZ599–RZ476b4.960.31*0.68***0.31*5.12.520.30*0.40**0.39**6.7
LTGY4.090.17*0.39***0.23*6.43.150.38**0.25*0.30**7.9
LTBY1C112–RG23611RZ53–RZ7812.110.39*−0.48**7.5
LTGY2.740.18*−0.26**7.5
LTBY2RZ446b–RZ446a7G20–RG305.100.54**0.77***12.04.130.59**0.80***13.4
LTGY3.360.44***11.73.460.44***10.9
LTBY3C74a–RG4505CDSR49–RG3462.430.55***−0.55***8.62.800.47**−0.68***11.8
LTGY3.450.38**−0.41**11.23.010.20*−0.45***11.6
LTBY5RG556–gl18C424b–RZ1433.300.70**−0.70***12.1
LTGY3.120.23**−0.48***12.3
LTGY1C944b–RG9573RZ474–C7463.510.24*0.24*0.25**7.12.340.34**8.9
LTGY6C76–RZ5168G187–G56a3.400.25*0.34**9.62.100.18*0.36**9.4
TQBY1CD0118–CD04551RZ382–RG532a4.040.68**−0.65***8.53.970.70**−0.74***10.9
TQGY5.280.39***−0.44***8.95.390.43***−0.44***5.9
TQBY1RG236–RZ8016RZ762–C762.520.54**5.52.980.59***8.5
TQGY5.090.40***7.45.010.45***6.6
TQBY1RZ288–C13112RG20q–RG91q3.490.57**5.82.530.54**7.7
TQGY5.720.57***8.13.640.51***7.5
TQBY4Gl77–RZ590b9CD01081–RZ7772.59−0.54**7.7
TQGY5.74−0.48***10.44.500.23*−0.40***4.9
TQBY4Ph–G37911RG1109–RZ537b2.710.36*0.56**6.82.110.53**7.3
TQGY3.930.22*0.28**5.83.210.24*0.36**5.4
TQBY7RG678–G208RZ143–C825a3.750.32*−0.59**6.93.420.40**−0.52**6.8
TQGY5.69−0.52***12.54.41−0.48***7.1
TQBY1RG472–RG44712RG91q–RG8692.740.71**9.33.200.79***11.4
TQBY8G2140–RZ323a9CD01081–RZ7773.290.51**0.57**7.9
Z413BY1RZ14–C944b6G1468b–RG4243.390.60*0.94***7.04.251.03***0.93***7.6
Z413GY5.520.38**0.68***8.95.040.50**0.67***8.3
Z413BY2RG139–C624x8CSU754–G1043.771.21***−0.62*4.64.181.36***−0.63*5.1
Z413GY3.240.49**−0.38*5.03.620.59***−0.41*5.1
Z413BY3CD0337–C944a4HHU39–RG1432.72−0.96***7.13.480.51*−1.16***9.5
Z413GY2.99−0.59***6.54.10−0.71***8.8
Z413BY4RZ69–RG1906C236–RG6534.58−1.62***1.60***−1.47***10.94.19−1.47***1.55***−1.47***12.0
Z413GY3.22−0.91**0.67*−0.72***9.43.94−0.96**0.78*−0.76***9.4
Z413BY4Ph–G3798G187–G56a4.42−1.16***8.64.910.52*−1.38***11.3
Z413GY3.24−0.67***8.54.82−0.80***10.0
Z413BY1C131–RG4724RG1094eY1065Lc2.490.86**6.2
Z413BY3G249–RG4185RG556–gl13.940.86***0.86**6.4
Z413BY7C586–CD040512RG901–G4023.191.38***10.23.521.64***13.4
Z413GY4RG214–Ph12RG901–G4023.980.81***10.63.750.75***9.3
IR64BY2RZ476a–RZ5995RG13–CDSR493.65−0.45*−0.84***6.43.73−0.96***8.2
IR64GY3.93−0.32**−0.44***5.33.88−0.48***6.0
IR64BY2RG520–RZ446b8C825a-CSU7543.350.56***6.9
IR64GY2.170.35**4.93.130.50***6.4
IR64BY3RZ761–G2498C825a–CSU7542.660.85***6.62.730.77***5.8
IR64GY3.310.51***7.03.410.48***5.8
IR64BY3G249–RG41811RG1109–RZ537b3.66−0.59**−1.00***9.03.13−0.72**−0.86**6.5
IR64GY3.83−0.26*−0.32*−0.62***9.13.65−0.31*−0.33*−0.61***7.7
IR64BY4Ph–G3796C–G200a2.57−0.75***5.14.09−0.92***7.4
IR64GY3.15−0.49***6.53.94−0.51***6.6
IR64BY6C236–RG65311RG16–RZ797b5.211.27***14.65.031.19***12.6
IR64GY5.360.70***13.35.150.65***10.8
IR64BY2RG520–RZ446b3RZ284–RZ403b3.06−0.95***10.93.25−1.19***12.1
IR64GY6RZ762–C767RG30–RG293.150.56**−0.59***8.63.220.66**−0.57**7.2
  • ai and aj were the main effects of the loci i and j, arising from the substitution of the Lemont allele by the Teqing allele, and aaij was the epistatic effect between loci i and j, as defined by Mather and Jinks (1982). *, significance levels of P < 0.05. **, significance levels of P < 0.001. ***, significance levels of P < 0.0001.