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

Table 3

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

Markers	Genotype	Susceptibility		value (χ^2)	value (LR)
		H	L
SNP1	AA	24 (0.63)	35 (0.7)	4.11	5.20
	AT	11 (0.29)	15 (0.3)	0.13	0.07
	TT	3 (0.08)	—
SNP2	CC	23 (0.61)	34 (0.68)	4.13	5.23
	CG	12 (0.32)	16 (0.32)	0.13	0.07
	GG	3 (0.08)	—
SNP4	AA	4 (0.11)	—	5.52	6.97
	AG	10 (0.26)	15 (0.3)	0.04	0.03
	GG	24 (0.63)	35 (0.7)
SNP5	CC	4 (0.11)	4 (0.08)	0.67	0.67
	CT	10 (0.26)	17 (0.34)	0.72	0.72
	TT	24 (0.63)	29 (0.58)

χ², Pearson’s chi-squared test of independence; LR, likelihood ratio.