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. 2016 Jun 23;11(6):e0157904. doi: 10.1371/journal.pone.0157904

Table 4. Model selection and distribution parameters used in the ML trees inference.

ML tree of HHE cation-binding domain sequences ML tree of oxygen-binding hemerythrin sequences
Tree topology search Best of NNIs and SPRs Best of NNIs and SPRs
Model of amino acids substitution LG LG
Number of taxa 389 472
Discrete gamma model
Number of categories 6 6
Gamma shape parameter 1.224 1.151