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Table 4 Parameters estimation and likelihood ratio tests for the branch-site and free-ratio models among rice MATE genes

From: The similar and different evolutionary trends of MATE family occurred between rice and Arabidopsis thaliana

Cluster Model npa lnL 2l Positive selected sitesb
OsMATE I Model A-null 92 −32162.29   Not allowed
Model A 93 −32157.88 8.82** 2
OsMATE II Model A-null 92 −32161.05   Not allowed
Model A 93 −32158.60 4.90** 3
OsMATE III Model A-null 92 −32155.71   Not allowed
Model A 93 −32149.67 12.08** 115
OsMATE IV Model A-null 92 −32161.59   Not allowed
Model A 93 −32154.39 14.4** 7
Not allowed M0: one-ratio 90 −32415.33   none
Mf: free-ratio 177 −32148.55 533.56** Not allowed
  1. Note: p < 0.01 were marked by **
  2. aNumber of parameters in the ω distribution
  3. bThe numbers of Positive-selection sites are inferred at posterior probabilities > 95 %