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Table 2 Likelihood ratio test (LRT) of functional divergence for each duplicate event of the VFTMs.

From: Evolution of the class C GPCR Venus flytrap modules involved positive selected functional divergence

Group 1 Group 2 Duplicate event θ ± S.E.(ML) LRT P
mGluR GB1 I 0.787 ± 0.109 52.076 <0.01
mGluR GB2 I 0.737 ± 0.101 53.163 <0.01
CaSR GB1 I 0.650 ± 0.141 21.342 <0.01
CaSR GB2 I 0.906 ± 0.132 47.410 <0.01
T1R GB1 I 0.826 ± 0.147 31.777 <0.01
T1R GB2 I 0.915 ± 0.127 51.798 <0.01
mGluR CaSR II 0.338 ± 0.106 10.241 <0.01
mGluR T1R II 0.446 ± 0.055 66.438 <0.01
CaSR T1R III 0.001 ± 0.022 0.292 NS
GB1 GB2 III 0.384 ± 0.123 5.686 NS
  1. I, II and III represent the first, second and third duplication events, ML and S.E. stand for maximum likelihood and standard error, respectively. The p values are the critical value of χ2 distribution with df = 1 (degree of freedom). NS means not significant at 1% level.