marginally nonsignificantP = 0.15
Interestingly, the Clade C model estimates that positive selection also plays a role (dN/dS = 2.8 for class 2, table 3 ), although this is marginally nonsignificant when compared with a Clade C model that assumes site class 2 to be evolving under drift ( P = 0.15, LRT, Clade C vs.