Table 2. Allele frequencies observed in the g.420 C>A SNP observed in the conventional and improved meat-type Okumino-kojidiri chickens.

		Conventional chickens		Improved chickens
Season	Gender	A	C	A	C
Summer	Female	0.419	0.581	1.0	0
Summer	Male	0.342	0.658	1.0	0
Winter	Female	0.445	0.555	1.0	0
Winter	Male	0.404	0.596	1.0	0
Allele frequency observed		0.398	0.602	1.0	0