Sheep Color Genetics

Are you curious about breeding colored sheep? Today we are looking coat color genetics in sheep and how you can select for a more colorful flock. See also: Baa Baa Brown Sheep. Genetics - Why a Brown Spotted Lamb is Like the Holy Grail How do I breed specific colours into my flock? Black and brown sheep actually come in various shades.

Moorit lambs are coffee-coloured at birth, but their wool often lightens to a warm cream after a few years. The book presents the core principles of sheep color genetics in a playful way without oversimplifying the extremely complex topic. It does so by presenting three core concepts-base color, pattern, and spotting.

Sheep Color Genetics Primer My discussion here is only about color genetics in sheep. It is simplified on purpose to make this complex subject a little more clear to those who, like me, have no prior background in biology to help with terminology and concepts. If geneticists stumble across this page and have serious reservations about what I've written, please feel free to email me, holly.

Color Genetics in Icelandic Sheep by Susan Briggs Introduction I thought I had a pretty good "handle" on Icelandic sheep genetics after poring over Stefania Sveinbjarnardottr-Dignum"s article and info sheets for hours. And I certainly thought I understood it after having studied Stefan Adal Steinssons' exhaustive 135. Basic Info The BASE© of Color in Sheep Recent years have provided new insight into the color genetics of sheep, providing informed breeders with better control of lamb and fleece color.

This control can equate to added income when the breeder begins to plan for lambs and fleece to fill their market's demands, but this []. The Genetic Basis of Coat Color The diverse coat colors in sheep, including black, are determined by their genetic makeup. Wool pigmentation relies on two primary types of melanin: eumelanin (black and brown shades) and pheomelanin (red and yellow hues).

red wool sheep fade rapidly (Tunis, Karakul, etc.) red hair sheep can be very dark black points with pale fleeces usually born dark, then lighten crossbreds are usually "speckle faced" spotting patterns add white areas or hairs to colored sheep many different patterns occur each is under separate genetic control. Color Genes In sheep there are four main genes that control color, with some extra genes that can also influence color. The B gene, the A gene, the E gene, and the S gene.

The Dilution gene is not seen in sheep. Another gene that can play a role in color is the Persian head gene (Ph). The B gene The A gene The E gene The S gene.

Furthermore, for the sheep breeds which are kept for skins and wool, coat/skin colour is an important economic trait. Until now the study of coat colour inheritance in sheep proved the dominance of white colour over pigmented/black coat or skin and of black over brown.