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Table 1 Generated PAML parameters for free-ratio (M1) and significant site-specific test (M2a, M1a; M7, M8) results for IL-4Rα.

From: Evidence of balanced diversity at the chicken interleukin 4 receptor alpha chain locus

Model

Parameters

Likelihood

ω = d N /d S

2ΔML

P value

M1

ω = estimated independently for all

-2907.434066

See additional file 4

-

-

M2a

ω0 = 0 (90.25%)

-2798.740466

ω2 = 10.30236 (9.75%)

102.747134

4.88 × 10-23

M1a

ω0 = 0 (80.13%)

-2850.114033

ω1 = 1 (19.87%)

  

M81

ω0–9 < 0.08 (9.03% each)

-2798.740987

ω10 = 10.30383 (9.75%)

102.747656

4.88 × 10-23

M7

ω0–7 = 0 (10.0% each)

-2850.114815

ω8,9 = 1 (10.0%)

  
  1. 1 Bayes Empirical Bayes analysis suggests 28 sites where P(ω > 1) > 95.0%. 2ΔML is twice the difference of the likelihoods of the variable minus the neutral model. The number of degrees of freedom is 2 for the site-specific model LRTs.