Table 2.

Range of sample sizes used in this research.

Experiment	Breeds	Group	Number
ST infection	SPF White leghorn	low H/L	28
		high H/L	19
	JXH chicken	low H/L	72
		high H/L	70
	JXH chicken	low H/L	40
		middle H/L	45
		high H/L	45
	10th generation	selected	35
		non-selected	60
	10th generation	selected	116
		non-selected	30
	12th generation	selected	90
		non-selected	90
MassARRAY	JLH chickens	\	384
Whole-genome resequencing	5th generation	selected	43
	9th generation	selected	92
	non-selected line	non-selected	92
	F2 population	\	141
Transcriptome sequencing	liver, spleen, cecum and cecal tonsils (JXH chicken)	selected	8
		non-selected	8
	Heterophils (F2 population)	low H/L	3
		high H/L	3
	Heterophils (12th population)	low H/L	8
		high H/L	8
Dual-luciferase reporter assays	DF1	\	4 replicates per vector