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Table 2 Summary of codeml tests for positive selection of toxins from venom-gland transcriptome in H. curtus

From: Venom-gland transcriptomic, venomic, and antivenomic profiles of the spine-bellied sea snake (Hydrophis curtus) from the South China Sea

Toxins (No.)

M1: Nearly neutral

-lnL

M2: Positive selection

-lnL

M0: ω

Δa

P-valueb

3-FTx (1, 2, 3)

p:

0.28

0.72

748.17

p:

0.17

0.39

0.45

735.24

2.81

25.86

2.4 × 10−6*

 

ω:

0.00

1.00

 

ω:

0.00

1.00

6.13

    

3-FTx (4)

p:

0.26

0.74

804.61

p:

0.05

0.52

0.43

783.22

3.48

42.78

5.1 × 10−10*

 

ω:

0.00

1.00

 

ω:

0.00

1.00

8.76

    

3-FTx (5)

p:

0.51

0.49

652.06

p:

0.35

0.37

0.28

632.67

2.86

38.78

3.8 × 10−9*

 

ω:

0.00

1.00

 

ω:

0.00

1.00

9.59

    

CTL (1)

p:

0.30

0.70

843.02

p:

0.19

0.74

0.06

840.70

0.21

4.64

0.10

 

ω:

0.00

1.00

 

ω:

0.00

1.00

24.33

    

CTL (2)

p:

0.64

0.36

1221.13

p:

0.84

0.00

0.16

1212.49

0.58

17.28

1.8 × 10−4*

 

ω:

0.05

1.00

 

ω:

0.22

1.00

3.50

    

CTL (3)

p:

0.15

0.85

1160.65

p:

0.40

0.00

0.60

1148.75

2.43

23.80

6.8 × 10−6*

 

ω:

0.00

1.00

 

ω:

0.17

1.00

4.52

    

CTL (4)

p:

0.53

0.47

1201.51

p:

0.50

0.44

0.07

1196.01

0.65

11.00

0.004

 

ω:

0.00

1.00

 

ω:

0.00

1.00

4.91

    

PLA2 (1)

p:

0.49

0.51

978.57

p:

0.68

0.00

0.32

973.82

0.86

9.50

0.009

 

ω:

0.00

1.00

 

ω:

0.13

1.00

3.17

    

PLA2 (2, 3)

p:

0.44

0.56

967.20

p:

0.60

0.00

0.40

949.47

2.08

35.46

2.0 × 10−8*

 

ω:

0.00

1.00

 

ω:

0.00

1.00

6.87

    

SVMP (1)

p:

0.34

0.66

4316.80

p:

0.85

0.00

0.15

4292.41

1.08

48.78

2.6 × 10−11*

 

ω:

0.00

1.00

 

ω:

0.57

1.00

5.53

    

SVMP (2)

p:

0.51

0.49

7561.33

p:

0.35

0.47

0.18

7411.20

1.30

300.26

0.00*

 

ω:

0.05

1.00

 

ω:

0.00

1.00

5.65

    

SVSP (1)

p:

0.47

0.53

2042.88

p:

0.41

0.55

0.04

2028.38

0.73

29.00

5.0 × 10−7*

 

ω:

0.01

1.00

 

ω:

0.00

1.00

7.78

    

SVSP (2)

p:

0.46

0.54

3659.22

p:

0.30

0.47

0.23

3579.72

2.25

159.00

0.00*

 

ω:

0.00

1.00

 

ω:

0.00

1.00

9.49

    

5NT (1, 2)

p:

0.66

0.34

3064.74

p:

0.89

0.06

0.05

3057.77

0.40

13.94

9.4 × 10−4*

 

ω:

0.00

1.00

 

ω:

0.19

1.00

6.10

    

CRISP (1, 2)

p:

0.43

0.57

2473.69

p:

0.28

0.56

0.16

2428.77

1.63

89.84

0.00*

 

ω:

0.00

1.00

 

ω:

0.00

1.00

6.69

    

NGF (1, 2, 3)

p:

0.54

0.46

2549.71

p:

0.60

0.30

0.10

2527.86

0.86

43.70

3.2 × 10−10*

 

ω:

0.12

1.00

 

ω:

0.28

1.00

4.35

    

Cystatin

p:

0.49

0.51

823.89

p:

0.93

0.00

0.07

816.20

0.94

15.38

4.6 × 10−4*

 

ω:

0.00

1.00

 

ω:

0.48

1.00

7.57

    

HA

p:

0.52

0.48

3349.08

p:

0.56

0.00

0.44

3347.91

0.54

2.34

0.31

 

ω:

0.00

1.00

 

ω:

0.00

1.00

1.28

    

PDE

p:

0.54

0.46

5504.07

p:

0.57

0.31

0.12

5488.82

0.65

30.50

2.4 × 10−7*

 

ω:

0.00

1.00

 

ω:

0.00

1.00

3.57

    

PLA2 inhibitor

p:

0.49

0.51

1905.45

p:

0.50

0.00

0.49

1905.43

0.48

0.04

0.98

 

ω:

0.00

1.00

 

ω:

0.00

1.00

1.06

    

PLB

p:

0.55

0.45

4016.84

p:

0.51

0.46

0.02

4001.61

0.58

30.46

2.4 × 10−7*

 

ω:

0.00

1.00

 

ω:

0.00

1.00

7.11

    

QC

p:

0.77

0.23

2219.42

p:

0.78

0.00

0.22

2219.39

0.22

0.06

0.97

 

ω:

0.00

1.00

 

ω:

0.00

1.00

1.08

    

VEGF

p:

0.38

0.62

1221.70

p:

0.64

0.30

0.05

1214.99

0.82

13.42

1.2 × 10−3*

 

ω:

0.00

1.00

 

ω:

0.43

1.00

7.44

    
  1. “*”, indicates significance at the 5% level after a Bonferroni correction
  2. a”, negative twice the difference in lnL between M1 and M2
  3. b”, P-value before correction