Table 7. Genome composition of reassortants between MDV and wtl viruses identified by pyrosequencing.

Virus used for reassortment	Clone number	Reassortment step			Gene	origin
			HA	NA	NS	M	NP	PA	PB1
A/Victoria/361/2011 (H3N2)	6.4	1st cloning	wt	wt	MDV	MDV	MDV	MDV	MDV
A/Ohio/02/2012 (H3N2)	4.1	1st cloning	wt	wt	mix	mix	MDV	MDV	MDV
	48.5	2nd cloning	wt	wt	MDV	MDV	MDV	MDV	MDV
A/Texas/50/2012 (H3N2)	4.1	1st cloning	wt	wt	mix	mix	mix	mix	mix
	46.2	2nd cloning	wt	wt	mix	MDV	MDV	MDV	MDV
	467.6	3d cloning	wt	wt	mix	MDV	MDV	MDV	MDV
	4678.2	4th cloning	wt	wt	MDV	MDV	MDV	MDV	MDV
A/Anhui/1/2013 (H7N9)	2.3	selective	wt	mix	mix	mix	mix	MDV	MDV
	28.3	1st cloning	wt	wt	MDV	MDV	MDV	MDV	MDV