iPedia Free Information Center

Information about Landrace

Landrace refers to domesticated animals or plants adapted to the natural and cultural environment in which they live (or originated) and, in some cases, work; they often develop naturally with minimal assistance or guidance from humans (or from humans using traditional rather than modern breeding methods), hence differ somewhat from what is commonly termed a breed, and usually possess more diverse phenotypes and genotypes. They often form the basis of more highly-bred formalised breeds. Sometimes a formalised breed retains the "landrace" name, despite no longer being a true landrace.

Examples

Animals

Landrace dogs

For example, landrace dogs are very different depending on their origins and purpose; Border Collies were originally a landrace breed in Scotland and northern England, where their primary characteristics had to do with how they herded sheep in the borderlands, and Salukis were a landrace breed in the Middle East where they chased game across open tracts of land. A landrace does not imply so much a breed as a type; for example, Border Collies traditionally have had a variation in appearance, from upright prick ears to nearly drop ears, different fullnesses of coat, and so on, although the general appearance was such that they could still be recognized as Border Collies and their performance around sheep most accurately represented their membership in that race.

Often, when people move to create a highly consistent breed, such as show dogs, focus is placed more on consistency of appearance rather than on consistency of behavior or adaptability to the environment, and much of what made the animals a landrace is lost. For example, show Border Collies might not be particularly good at herding sheep and might not have a coat that is appropriate for the Scottish borderlands; similarly, Salukis might not be able to chase or catch hares in the desert.

Other animals

Landrace sheep were originally a breed of sheep ideally suited for their environment. Several breeds of swine use "landrace" in the breed names.

A few horse breeds are claimed by aficionados to be "pure" and virtually unchanged from their original wild prototype or earliest landraces, though the term is rarely used in modern horse breeding. However, both the Arabian horse and the Andalusian horse make claims of great antiquity for the ancestry of their respective breeds.

Plants

Several defintions of the term landrace have been used in botanical application. The term has recently been defined as "an autochthonous landrace is a variety with a high capacity to tolerate biotic and abiotic stress, resulting in a high yield stability and an intermediate yield level under a low input agricultural system. " [1]

See also

References

1. ^ Zeven, A.C. (1998). "Landraces: A review of definitions and classifications". Euphytica 104 (2). 

External links

Domestication refers to the process whereby a population of animals or plants becomes accustomed to human provision and control. Humans have brought these populations under their care for a wide range of reasons: to produce food or valuable commodities (such as wool, cotton, or
..... Click the link for more information.
breed is a domesticated subspecies or infrasubspecies of an animal. For a type to be recognised as a breed, there should be a viable true-breeding population. The term may also be used as a verb, meaning action intended to produce offspring.
..... Click the link for more information.
phenotype describes the total physical appearance of an organism, as opposed to its genotype. This genotype-phenotype distinction was proposed by Wilhelm Johannsen in 1911 to make clear the difference between an organism's heredity and what that heredity produces.
..... Click the link for more information.
Genotype describes the genetic constitution of an individual, that is the specific allelic makeup of an individual, usually with reference to a specific character under consideration [1].
..... Click the link for more information.
C. l. familiaris

Trinomial name
Canis lupus familiaris
(Linnaeus, 1758)

The dog (Canis lupus familiaris) is a domestic subspecies of the wolf, a mammal of the Canidae family of the order Carnivora.
..... Click the link for more information.
Border Collie is a breed of herding dog that originated in the border country of England and Scotland. They are widely regarded as the most intelligent dog breed. [1]
..... Click the link for more information.
Motto
Nemo me impune lacessit   (Latin)
"No one provokes me with impunity"
"Cha togar m'fhearg gun dioladh"   
..... Click the link for more information.
Motto
Dieu et mon droit   (French)
"God and my right"
Anthem
No official anthem specific to England — the anthem of the United Kingdom is "God Save the Queen".
..... Click the link for more information.
Borderland may refer to:
  • A geographical space or zone around a territorial border
  • Borderland (Enterprise episode), a fourth-season episode of the science fiction series Star Trek: Enterprise
  • Borderland (film), a 2007 film starring Brian Presley

..... Click the link for more information.
For the passenger train service, see Saluki (Amtrak).

Saluki

Salukis come in a variety of coat colors.

..... Click the link for more information.
Middle East is a historical and political region of Africa-Eurasia with no clear boundaries. The term "Middle East" was popularized around 1900 in Britain, and has been criticized for its loose definition.
..... Click the link for more information.
Game is any animal hunted for food or not normally domesticated (such as venison). Game animals are also hunted for sport.

The type and range of animals hunted for food varies in different parts of the world.
..... Click the link for more information.
breed is a domesticated subspecies or infrasubspecies of an animal. For a type to be recognised as a breed, there should be a viable true-breeding population. The term may also be used as a verb, meaning action intended to produce offspring.
..... Click the link for more information.
breed is a domesticated subspecies or infrasubspecies of an animal. For a type to be recognised as a breed, there should be a viable true-breeding population. The term may also be used as a verb, meaning action intended to produce offspring.
..... Click the link for more information.
show dog is a purebred dog that is displayed at conformation dog shows to determine how well it physically conforms to established breed standards.

In many cases, show dog
..... Click the link for more information.
Lepus
Linnaeus, 1758

Type species
Lepus timidus
Linnaeus, 1758

Species

See text
Hares and jackrabbits are leporids belonging to the genus Lepus.
..... Click the link for more information.
Editing of this page by unregistered or newly registered users is currently disabled due to vandalism.
If you are prevented from editing this page, and you wish to make a change, please discuss changes on the talk page, request unprotection, log in, or .
..... Click the link for more information.
Sus
Linnaeus, 1758

Species

Sus barbatus
Sus bucculentus†
Sus cebifrons
Sus celebensis
Sus domestica
Sus falconeri†
Sus heureni

..... Click the link for more information.
| This page is a list of horse and pony breeds, and also includes terms used to describe types of horses that are not breeds but are commonly mistaken for breeds. A breed is defined generally as a viable true-breeding population.
..... Click the link for more information.
Horse breeding refers to reproduction in horses, and particularly the human-directed process of selective breeding of animals, particularly purebred horses of a given breed.
..... Click the link for more information.
Arabian horse is a breed of horse with a reputation for intelligence, high spirit, and outstanding stamina. With a distinctive head shape and high tail carriage, the Arabian is one of the most easily recognizable horse breeds in the world.
..... Click the link for more information.
Andalusian horse or Spanish horse is one of the oldest breeds of horses in the world today. It is also known as the PRE (Pura Raza Española; in English, Pure Spanish-bred
..... Click the link for more information.
Autochthon may mean:
  • Autochthon, the original inhabitants (indigenous peoples) of a place
  • Autochthonous language, the language of an indigenous people
  • Autochthonous church, the indigenous church of a people

..... Click the link for more information.
breed is a domesticated subspecies or infrasubspecies of an animal. For a type to be recognised as a breed, there should be a viable true-breeding population. The term may also be used as a verb, meaning action intended to produce offspring.
..... Click the link for more information.
Purebreds, also called purebreeds, are cultivated varieties or cultivars of an animal species, achieved through the process of selective breeding. When the lineage of a purebred animal is recorded, that animal is said to be pedigreed.
..... Click the link for more information.
Selective breeding in domesticated animals is the process of developing a cultivated breed over time.

Purebreds

See also:

..... Click the link for more information.


This article is copied from an article on Wikipedia.org - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.
Herod_Archelaus


page counter