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Table 4 Fitness analysis of resistance loci, tc_ rph1 and tc_ rph2 over 18 generations in the absence of phosphine selection

From: Rapid genome wide mapping of phosphine resistance loci by a simple regional averaging analysis in the red flour beetle, Tribolium castaneum

Generations Insects tested Genotypes Allelic frequency Chi-square analysis on genotypes
rr rs ss p allele q allele χ2(df = 1) P value
tc_ rph1
F2 94 28 41 27 0.51 0.49 2.15 0.143
F5 94 34 43 17 0.59 0.41 6.83* 0.009
F10 96 38 45 13 0.63 0.37 13.4** <0.001
F15 95 35 46 14 0.61 0.39 9.38* 0.002
F20 96 38 48 8 0.65 0.34 18.8** <0.001
tc_ rph2
F2 94 20 52 22 0.49 0.51 1.15 0.283
F5 96 5 54 37 0.33 0.67 22.8** <0.001
  F10 92 7 38 45 0.29 0.71 33.6** <0.001
F15 96 0 28 64 0.15 0.85 99.0** <0.001
F20 96 0 36 58 0.19 0.81 75.2** <0.001
  1. * Significant (P<0.01); ** Significant (P<0.001).
  2. Significance values are calculated from deviation from Hardy-Weinberg equilibrium compared to expected F2 (1:2:1) ratio.