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

Table 2

Allele frequency of polymorphic sites of the promoter region of the chicken Mx gene and association with chicken embryos’ susceptibility to virulent NDV infection.

Markers	Allele	Susceptibility		value (χ^2)	value (LR)	value (HWE)	MAF
		H	L
SNP1	A	59 (0.78)	85 (0.85)	0.02	0.01	1	0.16
	T	17 (0.22)	15 (0.15)	0.89	0.09
SNP2	C	58 (0.76)	84 (0.84)	1.64	1.62	1	0.20
	G	18 (0.24)	16 (0.16)	0.20	0.2
SNP4	G	58 (0.76)	85 (0.85)	2.14	2.12	0.49	0.19
	A	18 (0.24)	15 (0.15)	0.14	0.14
SNP5	T	58 (0.76)	75 (0.75)	0.04	0.04	0.14	0.24
	C	18 (0.24)	25 (0.25)	0.84	0.84

χ², Pearson’s chi-squared test of independence; LR, Likelihood ratio; HWE, Hardy–Weinberg equilibrium test; H, high susceptible chicken embryo group; L, less susceptible chicken embryo group; MAF, minor allele frequency.