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Table 1 Selective patterns for LW opsins

From: The evolution of opsin genes in five species of mirid bugs: duplication of long-wavelength opsins and loss of blue-sensitive opsins

Model npa Ln Lb Estimates of ω Models compared LRTc P values
Branch models
I: one ratio 118 − 44,881.38 ω = 0.053    
J: one ratio ω = 1 117 − 50,049.67 ω = 1 J vs. I 10,336.59 0
K: the LW1 lineage, LW2 lineage and the other branches have different dn/ds ratios 120 − 44,879.08 ω1 = 0.064, ω2 = 0.059, ω0 = 0.050 I vs. K 10,341.18 0
M: each branch has its own ω 233 − 44,569.90 Variable ω by branch I vs. M 622.96 0
Branch-site models
N: LW1 lineage has ω = 1 120 − 44,755.26     
O: LW1 lineage 121 − 44,755.26   N vs. O 0 1
P: LW2 lineage has ω = 1 120 − 44,772.03     
Q: LW2 lineage 121 − 44,772.03   P vs. Q 0 1
  1. aNumber of parameters
  2. bNatural logarithm of the likelihood value
  3. cTwice the log-likelihood difference between the two models