Table 1

Model comparisons and position of positively selected sites
Cluster LRT Sites selected (site number)
M8/M8a M0b/M0
PQLKY NS P=0.016
P P=0.05 P<10-3
Q P=0.038 NS
KL NS NS
Y NS NS
DMHSEX NS P<10-3
MD NS P<10-3
S P=0.04 P<10-3
H NS P<10-3
EX P<10-3 NS 9 sites
RΔε NS P=0.002
NS P=0.004
ε P=0.03 P<10-3 1 site
CαIZ P=0.03 P<10-3
NS P=0.048
Z P=0.002 P=0.03

*Model comparisons were performed using Likelihood Ratio Test (LRT) between nested models.

Model descriptions: Branch selection models: M0=one class of ω ratio and M0b=tree different ω ratio for the branches. Site selection models (ω ratio varies according to two classes); M8a: beta distribution of ω and ω=1 and M8: beta distribution of ω and ω1 > 1.

Serbielle et al.

Serbielle et al. BMC Evolutionary Biology 2012 12:253   doi:10.1186/1471-2148-12-253

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