Known loci in the KIT and TYR genes do not explain the depigmented white coat colour of Austro-Hungarian Baroque donkey

Figures & data

Figure 1. Different white coat colour phenotypes in donkeys: (a) grey coat colour (b) two white Austro-Hungarian White Baroque donkeys (c) white spotted donkey (d) white Asinara donkey.

Table 1. Genotypes for the White Spotting locus (c.1978*2T > A) and the Dominant White locus (c.662A > C) in the KIT gene.

Breed	Coat colour	Genotype White Spotted (c.662A > C)	Genotype Dominant White (c.1978*2T > A)
Unknown origin	Grey	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
White Austro-Hungarian Baroque Donkey	White	T/T	A/A
Hungarian Donkey	Dun^a	T/T	A/A
Hungarian Donkey	Dun^a	T/T	A/A
Hungarian Donkey	Black^a	T/T	A/A
Asinara Donkey	White	T/T	A/A
Asinara Donkey	White	T/T	A/C
Unknown origin	White Spotted	T/T	A/A
Unknown origin	White Spotted	T/A	A/A

^aWith known white offspring.

Table 2. Genotypes for the TYR locus (c.604C > G) (Utzeri et al. 2016).

Breed	Coat colour	n	TYR c.604C > G
White Austro-Hungarian Baroque Donkey	White	28	C/C
Hungarian Donkey	White	2	C/C
Hungarian Donkey	Solid coloured	3	C/C
Asinara Donkey	White	18	G/G
Unknown origin	Solid coloured	7	C/C

Utzeri VJ, Bertolini F, Ribani A, Schiavo G, Dall'Olio S, Fontanesi L. 2016. The albinism of the feral Asinara white donkeys (Equus asinus) is determined by a missense mutation in a highly conserved position of the tyrosinase (TYR) gene deduced protein. Anim Genet. 47:120–124.

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