Table 2. Results of the codon selection analyses.

			FEL			IFEL
Gene	Region	Sites	Negative	Neutral	Positive	Negative	Neutral	Positive	Location
P1*	104–275	172	54	116	2	41	129	2	138**, 247**
Hc-Pro*	276–734	459	188	271		113	346
P3*	743–1105	363	120	242	2	66	296	2	900**, 919**
6K1	1106–1157	52	20	32		7	44	1	1150
CI	1158–1791	634	282	352		148	485	1	1404
6K2	1792–1843	52	20	32		9	43
VPg*	1844–1876, 1886–2031	179	62	116	1	40	138	1	1966**
NIa-Pro	2032–2275	244	106	138		60	184
NIb	2276–2794	519	193	326		110	408	1	2508
CP*	2795–2997	203	39	163	1***	19	182	2	2922, 2981, 2987

For each gene, the total number of codons, as well as those detected to be under negative, neutral or positive selection with both FEL and IFEL methods are given. The last column indicates the location of positively selected sites.

^*partial genes;

^**sites detected to be under positive selection by both FEL and IFEL methods;

^***FEL method detected position 2981, whereas the other two positively selected positions at the CP gene were detected with IFEL method.