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Table 1 Site-selection tests for the avian and mammalian opsins

From: Gene loss, adaptive evolution and the co-evolution of plumage coloration genes with opsins in birds

Gene ωB ωM E[p] Odd score
RH1 0.061** 0.064* 0.411 1.429
RH2 0.080    
OPN1sw1 0.041* 0.178** 0.261 2.822
OPN1sw2 0.050*    
OPN1lw 0.024* 0.135 0.215 3.654
TMT 0.220*    
TMT2 0.118    
OPN3 0.101* 0.310** 0.210 3.761
PIN 0.230**    
VA 0.265**    
RGR 0.148** 0.193 0.316 2.166
RRH 0.155** 0.273** 0.333 2.000
OPN5 0.112 0.089 0.497 1.013
OPN4x 0.171**    
OPN4m 0.203 0.239** 0.470 1.128
  1. ω values were calculated using the ω categories and the respective proportions under the statistcally significant site-selection model: (**) positive selection, (*) negative selection or neutral evolution (unmarked). p is the probability of a sampled ωB category being higher than a sampled ωM category. E[p] is the expected value of p using the bootstrap technique for 100 000 bootstraps. The odd score is the (1 - p)/p ratio and indicates the likelihood ωM categories are higher than the ωB categories