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Table 1 Functional divergence between groups of the plant NIP subfamily

From: Divergence in function and expression of the NOD26-like intrinsic proteins in plants

Group1 Group2 Type-I Type-II
   θI ± S.E. LRT p Q k > 0.8 Q k > 0.9 θII ± S.E. Q k > 0.8
NIP I II 0.449 ± 0.063 51.3 <0.01 17 8 -0.085 ± 0.163 0
NIP I III 0.190 ± 0.068 7.7 <0.01 2 0 -0.105 ± 0.175 0
NIP I IV 0.429 ± 0.087 24.5 <0.01 7 3 0.004 ± 0.178 0
NIP II III 0.486 ± 0.068 50.6 <0.01 25 11 0.106 ± 0.112 2
NIP II IV 0.534 ± 0.098 29.4 <0.01 13 3 0.131 ± 0.115 2
NIP III IV 0.286 ± 0.092 9.7 <0.01 1 1 0.221 ± 0.119 7
  1. Note: θI and θII, the coefficients of Type-I and Type-II functional divergence between two gene clusters; LRT, Likelihood Ratio Statistic; Q k , posterior probability. Large Q k value indicates a high possibility that the functional constraint (or the evolutionary rate) or the physicochemical properties of a given amino acid site is different between two clusters.