Table 2. Pair-wised variance analysis CpG usage between viral groups.

	−ssRNA virus	+ssRNA virus	dsRNA virus	RT virus
−ssRNA virus	-	26.049**	30.027**	8.408**
+ssRNA virus		-	12.913**	13.256**
dsRNA virus			-	21.046**
RT virus				-

Note: F statistic of one-way ANOVA analysis is 239.252 (P<0.001). The pair-wised comparisons were performed based on the CpG_O/E values of each viral group, and the resulting T values of the independent T-test are shown. ** indicates P<0.0001. For the detailed analysis procedure, please refer to the Materials and Methods section.