Polymorphisms of the Chicken Mx Gene Promoter and Association with Chicken Embryos’ Susceptibility to Virulent Newcastle Disease Virus Challenge

Table 5

Haplotype analysis of four polymorphic sites of the chicken Mx gene promoter that are in LD and association with chicken embryos’ susceptibility to virulent NDV infection.

No.	Haplotypes				Frequencies			OR (95% CI)	value
	SNP1	SNP2	SNP4	SNP5	Total	H	L
1	A	C	G	T	0.74	0.74	0.74	1.00	—
2	T	G	A	C	0.06	0.22	0.15	0.54 (0.21–1.36)	0.2
3	A	C	G	C	0.06	0.01	0.10	9.18 (1.06–79.43)	0.042
4	A	G	G	T	0.01	0.01	0.01	0.73 (0.04–12.88)	0.83

CI, confidence interval; OR, odds ratio; H, high susceptible chicken embryo group; L, less susceptible chicken embryo group.