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Table 2 Codons under positive and negative selection

From: The glycoprotein TRP36 of Ehrlichia sp. UFMG-EV and related cattle pathogen Ehrlichia sp. UFMT-BV evolved from a highly variable clade of E. canis under adaptive diversifying selection

Codons

Branchesa

SLAC ωb

SLAC p-value

FEL ωb

FEL p-value

REL ωb

Bayes factor

MEME ωb

MEME p-value

Selection typec

6

B5

−4.047

0.333

−3.159

0.081

−1.126

229.790

-

-

Negative

8

7

−4.604

0.293

−4.597

0.071

−1.096

92.479

-

-

Negative

10

7

−0.686

0.787

−2.465

0.583

−0.149

0.595

>100

0.030

Positive

21

7

4.991

0.423

3.013

0.222

0.810

3.221

>100

0.019

Positive

28

7

8.543

0.184

5.818

0.082

1.678

28.536

>100

0.010

Positive

1

39

7

6.912

0.371

3.907

0.444

1.265

8.352

>100

0.013

Positive

1

40

7

4.047

0.444

2.432

0.350

0.476

1.985

>100

0.011

Positive

49

1

−16.858

0.031

−10.024

0.007

−1.120

178.481

-

-

Negative

6

51

6

3.473

0.603

1.923

0.586

0.096

1.136

>100

0.028

Positive

52

1

−8.094

0.111

−3.234

0.062

−1.087

77.050

-

-

Negative

6

71

1

−18.415

0.026

−14.187

0.004

−1.121

187.132

-

-

Negative

2

77

B1

4.047

0.444

2.150

0.377

0.340

1.681

>100

0.025

Positive

15

83

5

−4.047

0.333

−3.402

0.073

−1.127

243.194

-

-

Negative

89

2

−9.551

0.153

−7.402

0.042

−1.101

99.411

-

-

Negative

94

2

−6.708

0.201

−4.324

0.059

−1.124

189.451

-

-

Negative

96

2

−4.047

0.333

−4.119

0.063

−1.127

242.661

-

-

Negative

105

2

3.569

0.689

2.357

0.608

0.330

1.536

>100

0.030

Positive

116

2

−7.488

0.180

−3.380

0.074

−1.126

199.960

-

-

Negative

124

5

3.663

0.543

2.278

0.488

0.329

1.569

>100

0.004

Positive

139

10

−17.080

0.037

−7.190

0.074

−1.007

23.196

-

-

Negative

142

1

6.862

0.316

6.098

0.511

1.459

31.512

>100

0.009

Positive

10

145

1

4.902

0.413

4.701

0.571

1.230

7.496

>100

0.017

Positive

A1

152

10

20.127

0.244

41.463

0.238

1.510

66.006

>100

0.224

Positive

B4

A5

158

1

2.355

0.585

−1.195

0.886

1.162

161.941

1.219

0.612

Positive

4

A4

A5

10

162

1

16.368

0.227

8.312

0.354

1.574

87.208

>100

0.343

Positive

5

10

B2

166

1

25.338

0.042

5.483

0.239

1.510

20.855

>100

0.198

Positive

10

A8

167

10

28.242

0.032

8.115

0.083

1.677

53.176

>100

0.084

Positive

B1

170

10

−8.379

0.406

−74.785

0.031

0.536

0.396

-

-

Negative

9

  1. aInternal and external branches are identified by numbers and letters and numbers as in Figure 2.
  2. bThe ratio between non-synonymous (dN) and synonymous (dS) nucleotide substitution per site (ω) analyzed by Datamonkey via SLAC, FEL, REL and MEME.
  3. cSites were considered under positive selection (ω > 1) or negative selection (ω < 1) when at least one of the methods shows significant difference (p-value < 0.05 (SLAC, FEL and MEME) or Bayes Factor > 50 (REL)).