TABLE 4.

Population genetics parameters of different coding regions of CMV

Region	Positiona	Sites (total)b	πc	θ (S)d	% Nonsynonymous mutationse	Ka/Ks ratiof	ENCg
1a	95-1069	975	0.01945	0.03068	21.7 (23/106)	0.06972 (0.00482/0.06913)	58.185
2a	87-632	546	0.02153	0.03820	52.7 (39/74)	0.25909 (0.01275/0.04921)	55.684
2b	2419-2751	333	0.03248	0.04741	50.0 (29/58)	0.31170 (0.02161/0.06933)	59.916
MP	159-926	768	0.01841	0.02760	17.3 (13/75)	0.04564 (0.00303/0.06639)	55.405
CP	1269-1901	633	0.01489	0.02494	12.5 (7/56)	0.05206 (0.00258/0.04956)	59.696

^aNucleotide positions of the regions in the genomic RNAs of CMV Fny.

^bTotal nucleotides of the given genomic region used for analysis.

^cAverage number of nucleotide difference in terms of total sites analyzed.

^dStatistic θ from segregating sites.

^ePercentage of total mutations that are nonsynonymous. Values in parentheses are the number of nonsynonymous mutations/total number of mutations.

^fValues in parentheses are K_a (average number of nonsynonymous substitutions per nonsynonymous site)/K_s (average number of synonymous substitutions per synonymous site). K_a and K_s are estimated by the method described by Nei and Gojobori (25).

^gENC, effective number of codons.