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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.