Table 3.

Nucleotide fraction by codon position^a

Genotype	Amino acid	Value
		nPPR			PPR
		1	2	3	1	2	3
Genotype 1	A	19.31	24.09	8.07	16.11	14.00	9.68
	T	18.41	27.33	29.90	11.71	15.14	33.10
	C	26.89	28.67	36.85	34.24	59.24	33.10
	G	35.38	19.92	25.17	37.94	11.62	24.12
Genotype 3	A	19.48	24.98	12.14	17.58	12.02	15.93
	T	18.78	27.02	32.37	15.56	16.67	30.94
	C	26.54	27.67	29.60	36.71	58.16	28.96
	G	35.20	20.34	25.89	30.15	13.15	24.17
Genotype 4	A	19.32	24.77	12.28	10.78	15.01	18.67
	T	18.53	27.10	33.67	17.32	21.31	32.04
	C	26.70	27.86	28.24	34.61	52.38	26.86
	G	35.45	20.27	25.81	37.30	11.31	22.43
Avian	A	20.44	25.97	11.24	13.73	19.45	21.28
	T	17.35	28.01	26.00	9.15	16.48	26.54
	C	25.14	25.29	34.54	39.13	43.25	24.94
	G	37.06	20.73	28.22	37.99	20.82	27.23
Rubivirus	A	15.58	22.87	6.64	11.80	17.97	10.39
	T	12.84	22.78	10.41	6.28	7.06	9.50
	C	31.02	29.54	53.96	40.25	54.68	49.42
	G	40.56	24.82	29.00	41.66	20.29	30.69

^aIntegers above columns represent codon positions. All other values are percentages.