TABLE 3

Percentage of foreign homozygotes in BC2 populations

GA × GGA × A
MarkerObservedExpectedObservedExpected
X chromosome
5300.200
Second chromosome
4170.5***3.311.5*14.3
1750.5***3.311.2***14.9
790***3.211.2***18.2
7200***3.311.5***17.6
7700***3.2118***17.7
7860***3.612.0***17.1
1430.4***2.77.8***12.4
7870.4***4.45.7***8.6
6370.7***4.75.1***8.6
6751.1***5.14.6***8.4
Third chromosome
7763.54.20.8*2.4
8121.4*2.50.3***2.3
2490.2***1.50.3***2.1
1190.2***1.40.3***2.2
3110***2.20.5***2.4
1270***2.61.60.7
5770.2***2.91.31.0
7580.5***3.31.31.3
1020.9***4.20.5*1.8
8170.7***3.60.5*1.7

Expected values were calculated on the basis of allele frequencies in the BC2 population, assuming Hardy-Weinberg equilibrium. A chi-square test was used to test for significant deviations.

Sample size for (GA × G)BC2 ranges from 540 to 561 for each locus, the average being 558. For (GA × A)BC2, the sample size ranges from 365 to 376, the average being 373.

  • * P < 0.05

  • *** P < 0.01

  • *** P < 0.001.