TABLE 4

Partitioning the two-locus genetic variance in a population derived from a cross of Reventador maize × parviglumis teosinte

Percentage of σ2G
Locus UMC107Locus BV302Epistasis between UMC107-BV302
Traitaμ′μσ21σ22σ23σ24σ25σ26σ27σ28σ2Gσ2εσ2′G
CUPL9.0319.02443.470.0054.570.410.160.320.770.291.8910.2582.026
9.0319.07543.740.0054.200.500.120.390.760.282.007−0.7782.026
CUPR9.1319.12760.180.5638.500.000.560.020.010.162.3700.2252.514
9.1319.03861.690.5037.020.010.610.010.010.152.5541.6512.514
DISA2.8602.85556.540.1041.330.600.660.000.420.350.8850.0580.919
2.8602.80657.830.1039.970.510.820.010.410.340.9310.2880.919
INNO2.9222.92835.161.9543.602.120.061.474.7610.880.080−0.0350.082
2.9222.91935.132.3842.921.220.192.434.7710.950.0800.0190.082
LBIL55.68456.00526.851.3450.761.910.6412.320.535.65354.395−29.588360.790
55.68456.88829.911.0149.752.080.4810.980.465.34381.209−157.364360.790
LIBN2.1472.17980.174.215.050.991.621.413.263.292.688−0.4012.427
2.1472.32581.854.054.560.521.321.752.992.983.024−1.4242.427
PEDS0.8790.85517.404.1921.6617.1415.2813.186.244.902.8230.1452.927
0.8790.87518.794.7921.5715.5315.5312.326.664.792.9330.0002.927
STAM42.26742.49393.260.000.471.180.611.551.361.58537.363−17.111539.488
42.26744.18893.240.010.700.720.771.821.281.47588.402−218.632539.488
YOKE2.1892.16351.020.2841.340.615.220.031.500.000.9510.1530.993
2.1892.12552.830.2538.500.576.290.031.540.000.9940.2700.993
  • a Detailed descriptions of these traits are given in Table 3.

  • Partitioning the total genetic variance Embedded Image for two interacting loci, UMC107 and BV302, affecting nine morphological traits in the BC3F2 population (Teosinte-M1L × Teosinte-M3L) derived from an original cross of Reventador maize × parviglumis teosinte as described by Doebley et al. (1995) and Kao and Zeng (2002) is shown. The genetic variance with zygotic equilibrium Embedded Image for each trait is partitioned into eight independent components Embedded Image under Cockerham's model (top) and the F2-metric model (bottom).