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Table 3 Selective pressure analyses of Gymnitifores by the Branch-Site Model

From: Molecular evolution of globin genes in Gymnotiform electric fishes: relation to hypoxia tolerance

Gene Branch Model Ln 2ΔLn p Parameter Positive selected sites
Hba E.electricus Ma 3039.610    ω0 = 0.129, ω1 = 1, ω2 = 6.251 18-0.995**, 46–0.990*
   Ma0 3042.305 5.390 0.020 ω0 = 0.129, ω1 = 1, ω2 = 1  
Hbb B.gauderio Ma 3177.724    ω0 = 0.145, ω1 = 1, ω2 = 34.694 20-0.955*, 29–0.973*, 113–0.989*, 114–0.912, 132–0.981*, 133–0.888
   Ma0 3187.339 19.230 <0.001 ω0 = 0.139, ω1 = 1, ω2 = 1  
Mb B.gauderio Ma 5191.675    ω0 = 0.137, ω1 = 1, ω2 = 15.025 9-0.987*, 18–0.964*, 98–0.940, 109–0.990**, 122–0.994**, 134–0.992**, 138–0.911
   Ma0 5199.405 15.46 <0.001 ω0 = 0.136, ω1 = 1, ω2 = 1  
  E.electricus Ma 5191.521    ω0 = 0.136, ω1 = 1, ω2 = 381.189 37-0.998**, 106–0.982*, 108–0.960*, 109–0.993**, 117–0.944
   Ma0 5195.127 7.212 0.007 ω0 = 0.132, ω1 = 1, ω2 = 1  
  S.elegans Ma 5201.909    ω0 = 0.142, ω1 = 1, ω2 = 999 38-0.933
   Ma0 5204.687 5.556 0.018 ω0 = 0.141, ω1 = 1, ω2 = 1  
  Last common ancestor of gymnotiform Ma 5199.339    ω0 = 0.143, ω1 = 1, ω2 = 60.065 12-0.986*
   Ma0 5204.040 9.402 0.002 ω0 = 0.141, ω1 = 1, ω2 = 1  
Ngb S.macrurus Ma 2223.853    ω0 = 0.063, ω1 = 1, ω2 = 189.298 150-0.989*
   Ma0 2226.360 5.014 0.025 ω0 = 0.063, ω1 = 1, ω2 = 1  
  1. Note: *: posterior probability (pp) >95%; **: pp >99%