Table 3.

Genetic differentiation between subtype I and subtype II

Genome	P value#		Fst∆
	Ks*	Z*
RNA1	0.0000	0.0000	0.49108
RNA2	0.0000	0.0000	0.52272
RNA3	0.0000	0.0000	0.51652
RNA4	0.0000	0.0000	0.38509

^# P<0.001, which was considered as significantly rejecting the null hypothesis that there is no genetic differentiation between two subtypes

^∆Fst is a coefficient of the extent of genetic differentiation and provides an estimate of the extent of gene flow

Value of Fst >0.33 suggested infrequent gene flow