Figure 5.

Identification of codon sites evolving under positive selection in natural populations of VSIV. The figure shows the 42 codons under positive selection identified at multiple genes VSIV by MEME analysis. α: synonymous substitution rate, β¹:Non-synonymous substitution rate for the negative/neutral evolution component 1, p¹: mixture distribution weight allocated to negative/neutral evolution component 1, β⁺:non-synonymous substitution rate at a site for the positive selection component, p⁺:mixture distribution weight allocated to the positive selection component, LTR: likelihood test statistics for episodic diversification, i.e., p⁺ > 0, p-value: asymptotic p-value for episodic diversification, i.e., p⁺ > 0, # branches: the (very approximate and rough) estimate of how many branches have been under selection at this site, i.e., had an empirical Bayes factor of 100 or more for the β⁺ rate, q: and class: selection kind.