Table 2.

Evolutionary parameters inferred by Bayesian analysis

Region	Genotype	Nucleotide substitution rate [× 10–3 (95%HPD)]	tMRCA [yr (95% HPD)]	Date of MRCA
RdRp	GII.P12	2.965 (2.302–3.696)	45.622 (36.815–56.687)	1973
	GII.3[P12]	3.084 (2.427–3.780)	17.155 (16.013–19.549)	2002
VP1	GII.3	4.132 (3.573–4.698)	49.892 (47.007–54.081)	1969
	GII.3[P12]	3.866 (3.119–4.618)	18.243 (16.046–21.290)	2001