Dun gene

A dun is a horse with a light body, darker mane, dorsal stripe, tail and agouti markings. The color is caused by the wild-type allele at the locus Dun. In a broader sense, the word is also used for all horses with gray or sand-colored fur and darker long hair. This appearance can be caused by different genes.

Etymology

The word Falbe is the nominalized form of fallow, and dates as well as the word pale of the old Germanic adjective falo from that walked in the Middle High German val and valwer. It is related to a number of words from Indo-European languages ​​, the pale, gray, pale, whitish or pale yellow mean. For example, say Greek Polios gray, the Latin word means pallidus pale, the Lithuanian Palavas means pale yellow, the English called fallow fawn or yellow-brown. These words go to the Indo-European poluos ( pale ) back, which is derived from the Indo-European root pel, the bedeutet.6 gray whitish or mottled

Fallows in the strict sense

Horses with this gene are called Dun referred when they are originally brown, as Fuchsfalbe if it is genetically a fox and as Mausfalbe if the foundation is black. The recessive allele d is not lightened and more widespread in most domestic horses than the wild-type gene.

Appearance

The dorsal stripe often leads down to the tail into

The shorter cut hair here on the edge of the mane are often brighter than the base color of Fallows

On this Pastern Fallows slightly darker zebra stripes are inside to recognize

Black face mask with a Konik

It leads to brightened coat color on the body, which may be yellowish, reddish or gray, depending on the original color.

On the back there is always a distinct dorsal stripe, which begins between the ears and goes down the spine to the tail. Since the dorsal stripe is often narrower than the area where the mane grows, the mane is usually three colors: In the middle of the hair are dark, while the outer mane hair have the light a fawn. Also in the upper part of the tail ( what would be left if you would at the tail of the horse shave off the hair ) sometimes there is a trichotomy with light hair on the edge and darker in the middle, the lower part of the tail, however, is dark.

In other places the coat retains its original color darker and thereby forms the agouti badges. These are the dorsal stripe, shoulder a cross, a black face mask and single weak zebra stripes on the legs. These badges are pronounced very differently - some horses show all these features very clearly, at others they are apart from the dorsal stripe absent or very weak to detect.

Braunfalbe

Braunfalben are protected by the dun gene brightened Brown. They are sand color on the body, where the color can vary greatly due to the influence of others, only partially known genes. The agouti badge, mane, tail and dorsal stripe are black.

Depending on how high enough, the black markings on the brown gene underlying, it is pronounced differently even when Fallows.

Possible confusion:

• Braunfalben see earth-colored horses, which were brightened by the Cream gene similar. Can distinguish one they usually by the fact that horses with the cream gene have a monochrome black mane and no agouti markings. Historically, there is no difference between Fallows and earth colored horses were often made and all referred to indiscriminately as Fallows. Comparisons: Cream gene of the horse
• Amber Champagne: horses of this color are distinguished by the plain chocolate brown mane and tail, and pink skin with dark spots from Fallows.

Fuchsfalbe

Fuchsfalben or Rotfalben are brightened by the Falbgen foxes. They are sand color on the body, where the color can vary greatly due to the influence of others, only partially known genes. The agouti badge, mane, tail and dorsal stripe have the chestnut color is based.

Possible confusion:

• Horses of Color Gold Champagne and Isabel differ in the total-white or lighter mane from Fuchsfalben.
• By Pearl brightened foxes differ from Fallows fact that her long hair through the same sand color as the rest of the coat.

Mausfalbe

Mausfalben are protected by the dun gene brightened centimes. They are the body gray, the color vary significantly due to the influence of others, only partially known genes and partly also can play to brown. The agouti badge, mane, tail and dorsal stripe are black.

Possible confusion:

• Classic Champagne: horses of this color are distinguished by the plain chocolate brown mane and tail, and pink skin with dark spots from Mausfalben.
• By Pearl brightened cents differ from Fallows fact that her long hair through the same light gray color as the rest of the coat.
• Braunfalben whose underlying color is black brown, are sometimes hard to distinguish from Mausfalben.

Variations by other color genes

As bay, black and foxes can also dun be influenced by other genes. For them, mold, stitchhaired horses and all piebald are possible, which is also known by the other coat colors. Mouse and Braunfalben can be brightened by the Windfarbgen in their black and gray fur shares, while the Flaxen gene in Fuchsfalben the mane can further brighten. In many Fallows, there is also an evoked by the gene Pangare flour mouth, which also occurs as the fawn in wild horses.

Genetics

A Dun Dun has locus (D) allele corresponding to the wild type of the horse. It has traditionally been associated with the dilution locus in other animals and abbreviated as D. The exact gene location and function of the gene is still unknown, but in contrast to most genes that are traditionally associated with the dilution locus, it is obviously not a gene from the Albinismusspektrum as a Dun produce all dyes in normal extent can and at the sites of agouti badge also tut.7

The locus D is not sufficient to explain the inheritance of Aalst Riches, the shoulder cross and zebra -like drawings of the legs. Therefore Stachurska 1999 struck the locus M in front with an autosomal dominant allele for the dorsal stripe. The dorsal stripe is a prerequisite for the occurrence of all other stripes. Asymmetries of the left and right side suggest that more genes and gene loci play a role in the emergence of the agouti badge a role spielen.7

Breeds

The fawn corresponds to the wild type of the Przewalski's horse and the Tarpan. It occurs in many, especially the original pony breeds: Sorraia, Fjord Horse, Highland Pony, Dülmener wild horse Konik and are always Falben.1

History

Since wild horses were mostly Fallows, most of the horses were in the ancient Greek still dun. Mold and Palominos as deviations from this color were considered sacred or led to wonder.

Fallows in the broader sense

Earth-colored horses and the color Amber Champagne and Champagne Classic are traditionally also called Fallows, where their color is light gray or sand color. If so is in breed descriptions, there would be in a breed foxes, Brown, Isabel, and Fallows, you can be almost certain that the " dun " genetically no duns, but brightened by the Cream Gene Brown, so-called earth-colored horses or horses Color Champagne are.