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Table 3 Parameter estimates and likelihood ratio tests for the branch model

From: Genome-wide analysis of the Solanum tuberosum (potato) trehalose-6-phosphate synthase (TPS) gene family: evolution and differential expression during development and stress

Model p a LnLb Estimates of Parameters 2lc df p Positively selected sites
M0 (one ratio model) 1 -47935.395 ω=0.143 - - - None
Branch-specific model (Model 2: two ratios)
 Estimate ω for I-1 2 -47935.222 ω0=0.143, ωI1= 0.083 Model 2 Vs M0: 0.346 1 0.556 -
 Estimate ω for II-1 2 -47930.020 ω0= 0.146, ωII1= 0.083 Model 2 Vs M0: 10.750 1 0.001 -
 Estimate ω for II-2 2 -47924.924 ω0= 0.147, ωII2= 0.065 Model 2 Vs M0: 20.943 1 0.091 -
 Estimate ω for II-3 2 -47935.383 ω0= 0.143, ωII3= 0.147 Model 2 Vs M0: 0.024 1 0.000 -
 Estimate ω for II-4 2 -47934.740 ω0= 0.143, ωII4= 0.199 Model 2 Vs M0: 1.310 1 0.252 -
 Estimate ω for II-5 2 -47935.385 ω0= 0.143, ωII5= 0.148 Model 2 Vs M0: 0.020 1 0.888 -
  1. aThe number of free parameters for the ω ratios
  2. bLikelihood of the model
  3. c2(l1-l0)