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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.