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Table 3 Likelihood Ratio Test Statistics (2Δ l )

From: Tandem duplication, circular permutation, molecular adaptation: how Solanaceae resist pests via inhibitors

Comparison

2Δl

d.f.

χ21%

p value

M0 (one-ratio) vs. M3 (discrete)

2 × [-3163.57-(-3281.13)]= 235.12

4

13.28

<0.0001

M1a (NearlyNeutral) vs. M2a (PostiveSelection)

2 × [-3201.55-(-3219.57)]= 36.04

2

9.21

<0.0001

M7 (beta) vs. M8 (beta&ω)

2 × [-3156.75-(-3169.60)]= 25.70

2

9.21

<0.0001

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BMC Bioinformatics

ISSN: 1471-2105

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