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. 2013 Sep 24;14:650. doi: 10.1186/1471-2164-14-650

Table 4.

Fitness analysis of resistance loci, tc_rph1 and tc_rph2 over 18 generations in the absence of phosphine selection

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

* Significant (P < 0.01); ** Significant (P < 0.001).

† Significance values are calculated from deviation from Hardy-Weinberg equilibrium compared to expected F2 (1:2:1) ratio.