Table 1.

Overview of evolutionary pressures across the genome of VSIV. A dN/dS at each gene was computed using the MG94xREV model. The confidence interval was estimated using profile likelihood.

Gene	Codons	Tree length	dS	dN	dN/dS (95% CI)	Sites Under Selection (p ≤ 0.05)		Sites Under Selection/1000 Codons
						Purifying	Positive	Purifying	Positive
N	422	0.176	0.814	0.011	0.019 (0.01–0.03)	60	1	142.2	2.4
P	265	0.259	0.882	0.092	0.167 (0.13–0.21)	37	4	139.6	15.1
M	229	0.238	1.062	0.032	0.041 (0.03–0.06)	45	2	196.5	8.7
G	511	0.263	0.933	0.089	0.136 (0.11–0.16)	81	11	158.5	21.5
L	2109	0.229	0.921	0.048	0.075 (0.07–0.09)	342	24	162.2	11.4
Genome	3536	0.230	0.912	0.051	0.081 (0.08–0.09)	565	42	159.8	11.9