TABLE 2.

Association between the SLC45A2 Y277C missense mutation and variation in plumage color among female F₂ progeny in a red jungle fowl/White Leghorn intercross

	SLC45A2 genotype			Chi square (d.f. = 1)
Phenotype	277Y/W	277C/W	Total
Whitea	79	84	163	0.1
Creama	28	13	41	5.5*
White with black spotsa	16	10	26	1.4
Black with white spots	6	2	8	2.0
Gray	5	0	5	5.0*
Black	9	6	15	0.6
Wild type, grayish	4	12	16	4.0*
Wild type, normal	4	6	10	0.4
Barred, gray	10	10	20	0
Barred, yellow	2	1	3	0.3

^*P < 0.05.

^aThese birds were all homozygous or heterozygous for the Dominant white (I) allele, whereas all other classes were homozygous wild type (i/i).