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Table 2 Tests for positive selection among codons of expansin genes using site models

From: Genome-wide identification and expression analysis of expansin gene family in common wheat (Triticum aestivum L.)

Models p a Estimates of parameters InL 2l Positively selected sitesb
M0 1 ω =0.05125 -8064.27327   None
(one-ratio)      
M3 5 p0 = 0.00000 p1 = 0.66833 p2 = 0.33167 -7934.18358 260.2(M3 vs M0) None
(discrete)   ω1 = 0.00000 ω2 = 0.02999 ω3 =0.10964   
M7 2 p =1.60629 q = 21.60686 -7907.56503   Not allowed
(beta)      
M8 4 p0 =0.99999 p = 1.60629 q =21.60695 -7907.56552 0.00098(M8 vs M7) None
(beta&ɯ)   (p1 =0.00001) ω =1.17268    
  1. Note: aNumber of parameters in the ω distribution
  2. bPositive-selection sites are inferred at posterior probabilities > 95% with those reaching 99% shown in bold
  3. *Sites were also found to be implicated in the functional divergence
  4. Note: All sites are located on the reference sequence TaEXPA1-A based on the multiple alignment results