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Roan is a type of coat color in horses (and, occasionally, in other animals, such as dogs and cattle) that is a mixture of white hairs with a base coat of another color. Image File history File links RedRoan. ...
Image File history File links RedRoan. ...
For other uses, see Horse (disambiguation). ...
Trinomial name Canis lupus familiaris The dog is a mammal in the order Carnivora. ...
Binomial name Bos taurus Linnaeus, 1758 Cattle (often called cows in vernacular and contemporary usage, or kye as the Scots plural of cou) are domesticated ungulates, a member of the subfamily Bovinae of the family Bovidae. ...
Roan in Horses Roan, caused by the roan gene, (R), consists of single white hairs intermingled with the base color of a horse. Roaning gives the horse a lightened appearance, while the mane, tail and head tend to remain darker, close to the original base color. Roan horses also tend to have dark lower limbs, and the top of the dark area may have a pointed or triangular appearance. It is a dominant gene, meaning that at least one parent must be a roan in order to pass the gene on (it does not appear from two non-roan parents with roan lineage). This stylistic schematic diagram shows a gene in relation to the double helix structure of DNA and to a chromosome (right). ...
- see also Equine coat color genetics
The true roan gene appears in some breeds more than others. Roans are commonly found in Quarter Horses, American Saddlebreds, Tennessee Walking Horses, Connemara Ponies, Miniature horses, American Paint Horses, Welsh Ponies (though rarely, if ever, in Welsh Cobs) and Shetland Ponies. There are only two roan Morgan horses known to be alive today, a gelding and an aged mare, so the color is probably at a dead end in that breed. There are currently two theories of equine coat color genetics: Dr. Ann Bowlings and Dr. Phillip Sponenbergs. ...
The American Quarter Horse is a breed of horse originally bred specifically to race the quarter mile. ...
The American Saddlebred is a breed of horse that was developed in Kentucky by plantation owners. ...
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The Connemara is a hardy pony breed from Ireland, and is the ultimate pony sport horse, excelling at the top levels of most FEI disciplines. ...
AMHA Registered Pinto Miniature Mare. ...
The American Paint Horse is an American breed of horse which is a specific type of stock-horse. ...
The Welsh Pony designates a group of four related types: Welsh mountain pony (Section A) Welsh pony (Section B) Welsh pony of cob type (Section C) Welsh Cob (Section D) This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
The Welsh Cob (Section D) is the largest of the Welsh horse breeds, not less than 13. ...
A Shetland with the winter coat beginning to shed Shetland pony horses are small (on average up to 42 inches (10. ...
The Morgan is one of the first horse breeds developed in the United States. ...
The roan gene arguably does not appear in Arabians and Thoroughbreds; though horses in these breeds have been registered as "roan." It is thought that irregularly colored individuals in those breeds may actually carry the rabicano or sabino gene complex rather than the "true" roan gene. Image File history File linksMetadata Download high-resolution version (1024x768, 520 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Roan (color) Crioulo (horse) Metadata This file contains additional information, probably added from the digital camera or scanner...
Image File history File linksMetadata Download high-resolution version (1024x768, 520 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Roan (color) Crioulo (horse) Metadata This file contains additional information, probably added from the digital camera or scanner...
The Arabian horse is a breed of horse with a reputation for intelligence, high spirit, and outstanding stamina. ...
Thoroughbred race horses The Thoroughbred is a horse breed best known as a race horse. ...
Rabicano is a horse coat color that appears to be a type of partial roaning. ...
This Clydesdale horse has classic Sabino belly spots, white above its hocks, a chin spot and wide white facial markings. ...
Several terms are used to describe different shades of roan.
- see also Equine coat color
- Strawberry Roan Begins a chestnut base coat with white intermingled hairs. Some Strawberry roans have a pinkish tint.
- Red Roan Begins with a bay base coat, giving a roan horse a reddish coat and black or very dark "points" (mane, tail, head and lower legs). Some dark Strawberry Roans are also called Red Roans.
- Blue Roan Begins with a black base coat and the end result is a horse coat with a bluish tint.
These shades of roan are created genetically as follows: Horses exhibit a diverse array of coat colors and distinctive markings, and a specialized vocabulary has evolved to describe them. ...
Chestnuts. ...
Bay is a color of the hair coats of horses, characterized by a body color of dark red (known as blood bay) to deep brown, with black points (mane, tail, lower legs, and sometimes the muzzle and tip of the ears). ...
Friesian horses are one of the best-known breeds of black-colored horse Black is a relatively uncommon coat color in horses, though not so unusual as to be considered rare. ...
- Red base (chestnut) + Roan = Strawberry Roan (sometimes called a Red Roan)
- Black base + Roan = Blue Roan
- Bay (black base + Agouti gene) + Roan = Red Roan
Roan can also appear on any base color or mixture of colors, so there are also buckskin roans, silver dapple roans, etc. Contrary to some belief, the varnish roan coloring is not caused by the roan gene, but the result of the varnish roan gene combined with an appaloosa (normally spots, blankets, etc.) coloring. Also see "Varnish Roans" Chestnuts. ...
Friesian horses are one of the best-known breeds of black-colored horse Black is a relatively uncommon coat color in horses, though not so unusual as to be considered rare. ...
Bay is a color of the hair coats of horses, characterized by a body color of dark red (known as blood bay) to deep brown, with black points (mane, tail, lower legs, and sometimes the muzzle and tip of the ears). ...
Agouti refers to a number of species of rodents, as well as a number of genes affecting coat coloration in several different animals. ...
Varnish roan describes a horse with coloration similar to greying. ...
The Appaloosa is a horse breed, in which the horse has one of several distinct patterns of spots. ...
Lethal Roan Question The idea of "Lethal Roan Syndrome" came from a 1979 study (Hintz, H.F. and VanVleck, L.D., published 1979. Lethal Dominant Roan in Horses. Journal of Heredity 70:145-146.) This study, based on percentages of roan foals thrown by roan parents, popularized the idea of Lethal Roan Syndrome. The study did not include direct genetic analysis and assumed fetus absorption preventing birth.
A recent genetic study of roans by Dr. Ann Bowling (See http://www.hancockhorses.com/article-roanQHNews.pdf) refuted Hintz and VanVleck’s inferences. Using genetic analysis, Dr. Bowling found several homozygous roans and no evidence of a Lethal Roan Syndrome.
Roan in Dogs The roan gene in dogs acts as a simple dominant gene. The action of the gene results in a mingling of colored and white hairs. To be roan a dog must have white areas; a solid colored dogs can not be roan. Breeds where the roan gene commonly occurs are English cocker spaniels, English setters, Australian Cattle Dogs. The roan pattern also occurs in American Cocker Spaniels, Field spaniels and Border collies. The English Cocker Spaniel is a breed of gun dog. ...
The English Setter is a breed of dog. ...
The Australian Cattle Dog (ACD), also known as the Queensland Heeler, Blue Heeler, and Red Heeler, is a herding dog developed in Australia for controlling cattle. ...
The American Cocker Spaniel evolved in the United States from spaniels imported from Great Britain. ...
Breed standards (external links) FCI, AKC, ANKC KC(UK), NZKC, UKC The Field Spaniel is a brown and sometimes black or rowan spaniel, similar to the Springer and Cocker Spaniels. ...
The Border Collie is a hard-working breed of herding dog that originated in the border country of England and Scotland. ...
Roan dogs are more prone to deafness due to the absence of pigment present during ear formation. There are no other health issuses associated with this gene. Black and white roans are referred to as "blue roans" (spaniels) or "blue belton" (English setters). Red/buff and white roans are referred to as "red roans" "orange roans" or "lemon roans" or oran. Brown and white are referred to as "liver roans", "chocolate roans" or "brown roans". Most spaniels, like this English Cocker Spaniel, are small-to-medium dogs with drop ears and a longer coat. ...
The English Setter is a breed of dog. ...
Roan Cattle The roan colour can also result in Shorthorn Cattle, but in a case of intermediate inheritance or Codominance. These cattle can not breed true, as this type of intermediate inheritance is also Heterozygous, or hybrid, as two different colour alleles are required form the parents to produce this particular coat colouring. Binomial name Bos taurus Linnaeus, 1758 Cattle (often called cows in vernacular and contemporary usage, or kye as the Scots plural of cou) are domesticated ungulates, a member of the subfamily Bovinae of the family Bovidae. ...
It has been suggested that this article or section be merged with incomplete dominance. ...
Heterozygote cells are diploid or polyploid and have different alleles at a locus (position) on homologous chromosomes. ...
In genetics, an allele (pronounced al-eel or al-e-ul) is any one of a number of viable DNA codings occupying a given locus (position) on a chromosome. ...
See also There are currently two theories of equine coat color genetics: Dr. Ann Bowlings and Dr. Phillip Sponenbergs. ...
Horses exhibit a diverse array of coat colors and distinctive markings, and a specialized vocabulary has evolved to describe them. ...
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