Table 6. Comparison of nucleotide changes among the genomes of WT702, QA23 and QA23CkA10 viruses.

Genes	Position	WT702	QA23	QA23CkA10	QA23ML-1
PB2	444*	T	T	G	T
	668	A	A	G	A
	828*	T	C	T	C
	873*	G	G	A	G
	1435	A	T	A	T
	1906	G	G	G	A
	2292*	G	G	A	G
	2300	T	C	T	C
PB1	669*	G	A	A	A
	2131	A	A	T	A
PA	426*	A	A	G	A
	969*	C	T	C	T
	1669	C	C	A	C
	1779*	T	T	C	T
	2061*	A	A	G	A
HA	19†	C	T	T	T
	172	A	G	G	G
	763	G	G	A	G
	1043	A	A	C	A
	1174	G	A	A	A
	1230*	G	G	G	A
	1444	G	A	A	A
	1725†	C	A	A	A
NP	371	T	T	C	T
	564*	G	A	A	G
	740	C	C	T	C
NA	192–254	COMPLETE	DELETION	DELETION	DELETION
	255	C	G	G	G
	808*	T	T	C	T
M	412*	T	C	T	T
	499*	G	G	G	A
	528	C	T	T	T
	625*	G	G	G	T
	829	T	C	C	C
NS	343	T	C	C	C
	675	A	G	G	G
	681	A	G	G	G
	778	G	A	A	A

^*, Indicates synonymous mutations

^†, indicates nucleotide changes in non-coding region