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Table 2 Results from Tajima's relative rate test for synonymous and nonsynonymous divergence of Or2 genes in fig wasps.

From: Expression and evolutionary divergence of the non-conventional olfactory receptor in four species of fig wasp associated with one species of fig

   Substitutions at the 3rd codon position Substitutions at the 1st and 2nd codon positions
Outgroup SpeciesA-Species B Ma Mb χ2 Na Nb χ2
N. vit P. pil- P. sp. 13 7 1.80 3 4 0.14
A. mel A. bak- P. pil 52 44 0.67 9 8 0.06
  A. bak- P. sp. 53 45 0.65 9 10 0.05
D. mel C. c- A. bak 73 72 0.01 19 17 0.01
  C. c- P. pil 78 56 3.61 16 17 0.03
  C. c- P. sp. 79 56 3.92* 18 16 0.12
  C. sm- C. c 58 34 6.26* 20 12 2.00
  C. sm- A. bak 85 60 4.31* 22 12 2.94
  C. sm- P. pil 94 48 14.90*** 22 15 1.32
  C. sm- P. sp. 99 52 14.63*** 24 14 2.63
  1. Ma and Mb are the numbers of substitutions at the 3rd codon positions in the lineages leading to species A and B, respectively. Na and Nb are the number of substitutions at the 1st and 2nd codon positions in the lineages leading to species A and B, respectively. Species names are as in Table 1. P < 0.05 was used to reject the null hypothesis of equal rates between lineages. * 0.05 > P > 0.01; ** 0.01 > P > 0.001; *** P < 0.001.