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Table 3 Estimates of selection on synonymous codons for the concatenated sequence data.

From: Molecular evolution of synonymous codon usage in Populus

Test

log L

2 Δ L a MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGaciGaaiaabeqaaeqabiWaaaGcbaGaeGOmaiJaeuiLdq0aa0baaSqaaiabdYeambqaaiabdggaHbaaaaa@30C6@

df

p

Full model

-121729.0

-

-

-

Symmetric mutation rates

-122177.1

896.1

24

p < 0.0001

Mutation rates equal in all lineages

-122357.5

1257.1

77

p < 0.0001

No selection in P. deltoides

-121730.5

3.0

1

0.083

No selection in P. euphratica

-121729.7

1.4

1

p = 0.237

No selection in P. nigra

-121729.4

0.8

1

p = 0.371

No selection in P. tremula

-121744.4

30.9

1

< 0.0001

No selection in P. trichocarpa

-121729.2

0.4

1

p = 0.527

Selection equal in all lineages

-121818.6

179.3

8

< 0.001

  1. aComparison with the full model