Color Inheritance

Coat Colour Inheritance Charts of the Collie

Taken from the book THE COLLIE - A VETERINARY REFERENCE FOR THE PROFESSIONAL BREEDER byDr. Sharon Vanderlip, USA, Collie Breeder of Rainshade Collies

Parents		Progeny

Sable a^ya^ymm	Sable a^ya^ymm	Sable a^ya^ymm 100%

Sable a^ya^ymm	Sable a^ya^tmm	Sable a^ya^ymm 50%	Sable a^ya^tmm 50%

Sable a^ya^tmm	Sable a^ya^tmm	Sable a^ya^tmm 50%	Sable a^ya^ymm 25%	Tricolor a^ta^tmm 25%

Sable a^ya^ymm	Tricolor a^ta^tmm	Sable a^ya^tmm 100%

Sable a^ya^tmm	Tricolor a^ta^tmm	Sable a^ya^tmm 50%	Tricolor a^ta^tmm 50%

Sable a^ya^ymm	Blue-merle a^ta^tMm	Sable-merle a^ya^tMm 50%	Sable a^ya^tmm 50%

Sable a^ya^tmm	Blue-merle a^ta^tMm	Sable a^ya^tmm 25%	Sable-merle a^ya^tMm 25%	Blue-merle a^ta^tMm 25%	Tricolor a^ta^tmm 25%

Sable a^ya^ymm	Sable-merle a^ya^yMm	Sable a^ya^ymm 50%	Sable-merle a^ya^yMm 50%

Sable a^ya^ymm	Sable-merle a^ya^tMm	Sable-merle a^ya^yMm 25%	Sable-merle a^ya^tMm 25%	Sable a^ya^ymm 25%	Sable a^ya^tmm 25%

Sable a^ya^tmm	Sable-merle a^ya^yMm	Sable-merle a^ya^yMm 25%	Sable-merle a^ya^tMm 25%	Sable a^ya^tmm 25%	Sable a^ya^ymm 25%
Sable a^ya^tmm	Sable-merle a^ya^tMm
		Sable-merle a^ya^yMm 12,5%	Sable-merle a^ya^tMm 12,5%	Tricolor a^ta^tmm 12,5%

		Sable a^ya^ymm 12,5%	Sable a^ya^tmm 12,5%	Blue-merle a^ta^tMm 12,5%

Tricolor a^ta^tmm	Tricolor a^ta^tmm	Tricolor a^ta^tmm 100%

Tricolor a^ta^tmm	Blue-merle a^ta^tMm	Blue-merle a^ta^tMm 50%	Tricolor a^ta^tmm 50%

Tricolor a^ta^tmm	Sable-merle a^ya^yMm	Sable-merle a^ya^tMm 50%	Sable a^ya^tmm 50%

Tricolor a^ta^tmm	Sable-merle a^ya^tMm	Sable-merle a^ya^tMm 25%	Sable a^ya^tmm 50% 25%	Tricolor a^ta^tmm 25%	Blue-merle a^ta^tMm 25%

Blue-merle a^ta^tMm	Blue-merle a^ta^tMm	White-merle a^ta^tMM 25%	Tricolor a^ta^tmm 25%	Blue-merle a^ta^tMm 50%

Sable-merle a^ya^yMm	Sable-merle a^ya^yMm	White-merle a^ya^yMM 25%	Sable-merle a^ya^yMm 50%	Sable a^ya^ymm 25%
Sable-merle a^ya^yMm	Sable-merle a^ya^tMm
		White-merle a^ya^yMM	White-merle a^ya^tMM	Sable a^ya^ymm

		Sable-merle a^ya^yMm	Sable-merle a^ya^tMm	Sable a^ya^tmm
Sable-merle a^ya^tMm	Sable-merle a^ya^tMm
		White-merle a^ya^tMM 12,5%	White-merle a^ta^tMM 6,25%	White-merle a^ya^yMM 6,25%

		Sable-merle a^ya^tMm 25%	Sable-merle a^ya^yMm 12,5%	Blue-merle a^ta^tMm 12.5%

		Tricolor a^ta^tmm 6,25%	Sable a^ya^ymm 6,25%	Sable a^ya^tmm 12,5%

Sable-merle a^ya^yMm	Blue-merle a^ta^tMm	White-merle a^ya^tMM 25%	Sable-merle a^ya^tMm 50%	Sable a^ya^tmm 25%
Sable-merle a^ya^tMm	Blue-merle a^ta^tMm
		White-merle a^ya^tMM 12.5%	White-merle a^ta^tMM 12,5%	Tricolor a^ta^tmm 12,5%

		Sable-merle a^ya^tMm 25%	Sable a^ya^tmm 12,5%	Blue-merle a^ta^tMm 25%

The lighter highlighed colour combinations are not allowed in Switzerland.

Merle x merle breeding produces the so-called double-merles or white-merles, they may be defective in hearing and/or vision.

Sable-merles or darksable-merles can sometimes be very difficult to identify, usually the merling can be seen on puppies only. A knowledge of the parents genytypes is required. To avoid a sable-merle x sable-merle mating, thie breeding of sable-merles is not allowed as well.

White Collies are 90-99 percent all white and are homozygous for the white factor s^w. The head of the White Collie is coloured according to its genotype (sable, tricolour, blue-merle). As the collie is a British breed, England is responsible for Collie standard. In the actual standard, the colour white is not a recognised Collie colour and may lead to a disqualification on shows and selections. In the USA the White Collie is permitted to be exhibited, the colour white is an additional colour in the US standard.

The White Collie is a healthy dog as sable and tricolours, and is on its way to win more and more popularity in Europe. The White Collie has noting to do with a double-merle which may be defective.

Parents		Progeny

weiss s^ws^w	weiss s^ws^w	weiss 100% s^ws^w

weiss-faktoriert sⁱs^w	weiss-faktoriert sⁱs^w	weiss 25% s^ws^w	weiss-faktoriert 50% sⁱs^w	nicht weiss faktoriert 25% sⁱsⁱ

weiss faktoriert sⁱs^w	weiss s^ws^w	weiss 50% s^ws^w	weiss faktoriert 50% sⁱs^w

weiss s^ws^w	nicht weiss faktoriert sⁱsⁱ	weiss-faktoriert 100% sⁱs^w

weiss-faktoriert 100% sⁱs^w	nicht weiss faktoriert sⁱsⁱ	weiss-faktoriert 50% sⁱs^w	nicht weiss faktoriert 50% sⁱsⁱ

nicht weiss faktoriert sⁱsⁱ	nicht weiss faktoriert sⁱsⁱ	nicht weiss faktoriert 100% s<