Table 2.

Summary of selection detection tests

ORF	Regions	PARRIS	GA Branch		Positively selected sites
		Mean dN/dS	Number of branches with positive selection	SLAC	FEL	REL
ORF 1	5′ terminus	0.678 ± 0.362	0	0	0	9
	Coiled coil	0.444 ± 0.319	0	0	48	0
	RRM	0.268 ± 0.258	0	0	52	0
	CTD	0.302 ± 0.398	0	0	0	0
ORF 2	5′ terminus (1–2207)	0.248 ± 0.344	0	0	107,157,299	107, 299
	3′ terminus (2207-end)	0.267 ± 0.360	0	0	0	0