Table 4.

The allele and genotype frequencies of seven analyzed polymorphisms (SNP) of equine DNA methyltransferase genes (DNMT1, DNMT3a, and DNMT3b). Genotype analysis was determined in 60 horses (see “Materials and methods”); n represents the number of observed alleles or genotypes

Gene	Region	Allele		Genotype
DNMT1	Intron 2	T: 0.442	C: 0.558	T/T: 0.183	C/T: 0.517	C/C: 0.3
		n = 53	n = 67	n = 11	n = 31	n = 18
	Intron 21	A: 0.95	G: 0.05	A/A: 0.9	A/G: 0.1	G/G: 0
		n = 114	n = 6	n = 54	n = 6	n = 0
	Intron 22	A: 0.558	G: 0.442	A/A: 0.3	A/G: 0.517	G/G: 0.183
		n = 67	n = 53	n = 18	n = 31	n = 11
DNMT3b	Intron 13	T: 0.325	C: 0.675	T/T: 0.2	C/T: 0.25	C/C: 0.55
		n = 39	n = 81	n = 12	n = 15	n = 33
DNMT3a	Intron 3	A: 0.667	G: 0.333	A/A: 0.433	A/G: 0.467	G/G: 0.1
		n = 80	n = 40	n = 26	n = 28	n = 6
	Intron 7	A: 0.942	G: 0.058	A/A: 0.883	A/G: 0.117	G/G: 0
		n = 113	n = 7	n = 53	n = 7	n = 0
	Intron 17	G: 0.942	C: 0.058	G/G: 0.883	G/C: 0.117	C/C: 0
		n = 113	n = 7	n = 53	n = 7	n = 0