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File:Journal.pbio.2006352.g002 cropped.png
Aerial roots of a maize landrace, Sierra Mixe corn, grown in nitrogen-depleted soils in the Sierra Mixe, known for extensive aerial roots with a bacterial gel supplying 29–82% of the plant's nitrogen supply<ref name="nitrogen-maize">Template:Cite journal</ref>

A landrace is a domesticated, locally adapted,<ref name="Sponenberg 2000" /><ref name="FAO Reviewing">Template:Cite book</ref><ref name="Jones 2008" /> often traditional<ref name="Camacho Villa 2005" /> variety of a species of animal or plant that has developed over time, through adaptation to its natural and cultural environment of agriculture and pastoralism, and due to isolation from other populations of the species.<ref name="Sponenberg 2000" /> Landraces are distinct from cultivars and from standard breeds.<ref name="FAO Glossary" />

A significant proportion of farmers around the world grow landrace crops,<ref name="Jones 2008" /> and most plant landraces are associated with traditional agricultural systems.<ref name="Camacho Villa 2005">Template:Cite journal</ref> Landraces of many crops have probably been grown for millennia.<ref name="Zeven" /> Increasing reliance upon modern plant cultivars that are bred to be uniform has led to a reduction in biodiversity,<ref name="Olson">Template:Cite journal</ref><ref name="Andersen" /><ref name="NBDC">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> because most of the genetic diversity of domesticated plant species lies in landraces and other traditionally used varieties.<ref name="Andersen" /> Some farmers using scientifically improved varieties also continue to raise landraces for agronomic reasons that include better adaptation to the local environment, lower fertilizer requirements, lower cost, and better disease resistance. Cultural and market preferences for landraces include culinary uses and product attributes such as texture, color, or ease of use.<ref name="Olson" /><ref name="Andersen" />

Plant landraces have been the subject of more academic research, and the majority of academic literature about landraces is focused on botany in agriculture, not animal husbandry. Animal landraces are distinct from ancestral wild species of modern animal stock, and are also distinct from separate species or subspecies derived from the same ancestor as modern domestic stock. Not all landraces derive from wild or ancient animal stock; in some cases, notably dogs and horses, domestic animals have escaped in sufficient numbers in an area to breed feral populations that form new landraces through evolutionary pressure.

CharacteristicsEdit

There are differences between authoritative sources on the specific criteria which describe landraces, although there is broad consensus about the existence and utility of the classification. Individual criteria may be weighted differently depending on a given source's focus (e.g., governmental regulation, biological sciences, agribusiness, anthropology and culture, environmental conservation, pet -keeping and -breeding, etc.). Additionally, not all cultivars agreed to be landraces exhibit every characteristic of a landrace.<ref name="Camacho Villa 2005" /> General features that characterize a landrace may include:

File:Snap melon - ("phoot") (8685833094).jpg
A basket of landrace snap melons Cucumis melo subspecies agrestis, cultivar group Momordica from Pemba town, northern Mozambique. The landrace incorporates different colours and patterns of the fruit surface and is the only melon cultivar group in northern Mozambique.Template:Citation needed
  • It is morphologically distinctive and identifiable (i.e., has particular and recognizable characteristics or properties),<ref name="Camacho Villa 2005" /><ref name="Harlan 1">Template:Cite bookTemplate:Page needed</ref> yet remains "dynamic".<ref name="Camacho Villa 2005" />
  • It is genetically adapted to,<ref name="Camacho Villa 2005" /><ref name="Participatory" /> and has a reputation for being able to withstand,<ref name="Harlan 1" /> the conditions of the local environment, including climate, disease and pests, even cultural practices.<ref name="Harlan 1" />
  • It is not the product of formal (governmental, organizational, or private) breeding programs,<ref name="Participatory" /> and may lack systematic selection, development and improvement by breeders.<ref name="Jones 2008" /><ref name="Sponenberg 2000" /><ref name="Camacho Villa 2005" />
  • It is maintained and fostered less deliberately than a standardized breed, with its genetic isolation principally a matter of geography acting upon whatever animals that happened to be brought by humans to a given area.<ref name="Sponenberg 2000" />
  • It has a historical origin in a specific geographic area,<ref name="Camacho Villa 2005" /> will usually have its own local name(s),<ref name="Participatory" /><ref name="Harlan 1" /> and will often be classified according to intended purpose.<ref name="Harlan 1" />
  • Where yield (e.g. of a grain or fruit crop) can be measured, a landrace will show high stability of yield, even under adverse conditions, but a moderate yield Template:Em, even under carefully managed conditions.<ref name="Zeven" />
  • At the level of genetic testing, its heredity will show a degree of integrity,<ref name="Harlan 1" /> but still some genetic heterogeneity<ref name="Participatory" /> (i.e. genetic diversity).<ref name="Camacho Villa 2005" /><ref name="Harlan 2">Template:Cite journal</ref>

TerminologyEdit

Template:See also Template:Wikt Landrace literally means 'country-breed' (German: Landrasse)<ref name="Dictionary.com">{{#invoke:citation/CS1|citation |CitationClass=web }} Based on the Random House Dictionary.</ref> and close cognates of it are found in various Germanic languages. The first known reference to the role of landraces as genetic resources was made in 1890 at an agriculture and forestry congress in Vienna, Austria. The term was first defined by Kurt von Rümker in 1908,<ref name="Zeven">Template:Cite journal Abstract and first two pages are available for free access.</ref> and more clearly described in 1909 by U. J. Mansholt, who wrote that landraces have more stable characteristics and better resistance to adverse conditions, but have lower production capacity than cultivars, and are apt to change genetically when moved to another environment.<ref name="Zeven" /> H. Kiessling added in 1912 that a landrace is a mixture of phenotypic forms despite relative outward uniformity, and a great adaptability to its natural and human environment.<ref name="Zeven" />

The word landrace entered non-academic English in the early 1930s, by way of the Danish Landrace pig, a particular breed of lop-eared swine.<ref name="Dictionary.com" /> Many other languages do not use separate terms, like landrace and breed, but instead rely on extended description to convey such distinctions. Spanish is one such language.Template:Citation needed

Geneticist D. Phillip Sponenberg described animal breeds within these classes: the landrace, the standardized breed, modern "type" breeds, industrial strains, and feral populations. He describes landraces as an early stage of breed development, created by a combination of founder effect, isolation, and environmental pressures. Human selection for production goals is also typical of landraces.<ref name="Sponenberg Bixby">Template:Cite book</ref>

As discussed in more detail in breed, that term itself has several definitions from various scientific and animal husbandry perspectives. Some of those senses of breed relate to the concept of landraces. A Food and Agriculture Organization of the United Nations (FAO) guideline defines landrace and landrace breed as "a breed that has largely developed through adaptation to the natural environment and traditional production system in which it has been raised."<ref name="FAO Glossary">Template:Cite book</ref> This is in contrast to its definition of a standardized breed: "a breed of livestock that was developed according to a strict programme of genetic isolation and formal artificial selection to achieve a particular phenotype."

In various domestic species (including pigs, goats, sheep and geese) some standardized breeds include "Landrace" in their names, but do not meet widely used definitions of landraces. For example, the British Landrace pig is a standardized breed, derived from earlier breeds with "Landrace" names.<ref name="BPA">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Farmers' variety, usually applied to local cultivars, or seen as intermediate between a landrace and a cultivar,<ref name="Ramanandan" /> may also include landraces when referring to plant varieties not subjected to formal breeding programs.<ref name="Participatory" />

Autochthonous and allochthonous landracesEdit

A landrace native to, or produced for a long time within the agricultural system in which it is found is referred to as an autochthonous landrace, while a more recently introduced one is termed an allochthonous landrace.<ref name="Zeven" /><ref name="Camacho Villa 2005" /><ref name="FAO B.1">Template:Cite bookTemplate:Dead link</ref>

Within academic agronomy, the term autochthonous landrace is sometimes used with a more technical, productivity-related definition, synthesized by A. C. Zeven from previous definitions beginning with Mansholt's: "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."<ref name="Zeven" />

The terms autochthonous and allochthonous are most often applied to plants, with animals more often being referred to as indigenous or native. Examples of references in sources to long-term local landraces of livestock include constructions such as "indigenous landraces of sheep",<ref name="Ramsay">Template:Cite FTP</ref> and "Leicester Longwool sheep were bred to the native landraces of the region".<ref name="Simmons">Template:Cite book</ref> Some usage of autochthonous does occur in reference to livestock, e.g. "autochthonous races of cattle such as the Asturian mountain cattle – Ratina and Casina – and Tudanca cattle."<ref name="Picos de Europa">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Biodiversity and conservationEdit

File:Cucurbita maxima zapallo plomo (semillas Costanzi) temporada 2014.jpg
A morphologically diverse group of fruit from the Zapallo Plomo landrace of Cucurbita maxima squash

A significant proportion of farmers around the world grow landrace crops.<ref name="Jones 2008">Template:Cite journal The copy at this URL is missing the author information but provides full text otherwise; that information is available in this official online abstract.</ref> However, as industrialized agriculture spreads, cultivars, which are selectively bred for high yield, rapid growth, disease and drought resistance, and other commercial production values, are supplanting landraces, putting more and more of them at risk of extinction.Template:Citation needed

In 1927 at the International Agricultural Congress, organized by the predecessor of the FAO, an extensive discussion was held on the need to conserve landraces. A recommendation that members organize nation-by-nation landrace conservation did not succeed in leading to widespread conservation efforts.<ref name="Zeven" />

Landraces are often free from many intellectual property and other regulatory encumbrances. However, in some jurisdictions, a focus on their production may result in missing out on some benefits afforded to producers of genetically selected and homogenous organisms, including breeders' rights legislation, easier availability of loans and other business services, even the right to share seed or stock with others, depending on how favorable the laws in the area are to high-yield agribusiness interests.<ref name="Andersen">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

As Regine Andersen of the Fridtjof Nansen Institute (Norway) and the Farmers' Rights Project puts it, "Agricultural biodiversity is being eroded. This trend is putting at risk the ability of future generations to feed themselves. In order to reverse the trend, new policies must be implemented worldwide. The irony of the matter is that the poorest farmers are the stewards of genetic diversity."<ref name="Andersen" /> Protecting farmer interests and protecting biodiversity is at the heart of the International Treaty on Plant Genetic Resources for Food and Agriculture (the "Plant Treaty" for short), under the Food and Agriculture Organization of the United Nations (FAO), though its concerns are not exclusively limited to landraces.<ref name="Andersen" />

Landraces played a basic role in the development of the standardized breeds but are today threatened by the market success of the standardized breeds. In developing countries, landraces still play an important role, especially in traditional production systems.<ref name="FAO Glossary" /> Specimens within an animal landrace tend to be genetically similar, though more diverse than members of a standardized or formal breed.<ref name="Sponenberg 2000" />

File:Ecotipi carosello e barattiere.jpg
Carosello and Barattiere, Italian landraces of Cucumis melo whose fruits are eaten unripe

In situ and ex situ landrace conservationEdit

Two approaches have been used to conserve plant landraces:<ref name="NBDC" /><ref name="exsitu" />

  • in situ where the landrace is grown and conserved by farmers on farms.
  • ex situ where the landrace is conserved in an artificial environment such as a gene-bank, using controls such as laminated packets kept frozen at Template:Convert.

As the amount of agricultural land dedicated to growing landrace crops declines, such as in the example of wheat landraces in the Fertile Crescent, landraces can become extinct in cultivation. Therefore ex situ landrace conservation practices are considered a way to avoid losing the genetic diversity completely. Research published in 2020 suggested that existing ways of cataloging diversity within ex situ genebanks fall short of cataloging the appropriate information for landrace crops.<ref name="exsitu">Template:Cite journal</ref>

An in situ conservation effort to save the Berrettina di Lungavilla squash landrace made use of participatory plant breeding practices in order to incorporate the local community into the work.<ref name="berrettina" />

Preserving cereal landracesEdit

Preservation efforts for cereal strains are ongoing including in situ and in online-searchable germplasm collections (seed banks), coordinated by Biodiversity International and the National Institute of Agricultural Botany (NIAB, UK).<ref name="Jones 2008" /> However, more may need to be done, because plant genetic variety, the source of crop health and seed quality, depends on a diversity of landraces and other traditionally used varieties.<ref name="Andersen" /> Efforts (Template:As of) were mostly focused on Iberia, the Balkans, and European Russia, and dominated by species from mountainous areas.<ref name="Jones 2008" /> Despite their incompleteness, these efforts have been described as "crucial in preventing the extinction of many of these local ecotypes".<ref name="Jones 2008" />

An agricultural study published in 2008 showed that landrace cereal crops began to decline in Europe in the 19th century such that cereal landraces "have largely fallen out of use" in Europe.<ref name="Jones 2008" /> Landrace cultivation in central and northwest Europe was almost eradicated by the early 20th century, due to economic pressure to grow improved, modern cultivars.<ref name="WWB">Template:Cite bookTemplate:Page needed</ref> While many in the region are already extinct,<ref name="Jones 2008" /> some have survived by being passed from generation to generation,<ref name="Jones 2008" /> and have also been revived by enthusiasts outside Europe to preserve European agriculture and food culture elsewhere.<ref name="Jones 2008" /> These survivals are usually for specific uses, such as thatch, and traditional European cuisine and craft beer brewing.<ref name="Jones 2008" />

PlantsEdit

Plant landrace developmentEdit

Template:See also

The label landrace includes regional cultigens that are genetically heterogeneous, but with enough characteristics in common to permit their recognition as a group. These characteristics are used by farmers to manage diversity and purity within landraces.<ref name="distinctiveness">Template:Cite journal</ref>

In some cultures, the development of new landraces is typically limited to members of specific social groups, such as women or shaman. Maintaining existing landraces, like developing new landraces, requires that farmers be able to identify crop-specific characteristics and that those characteristics are passed on to following generations.<ref name="distinctiveness" />

Over time, the process of identifying the distinguishing characteristic or features of a new landrace is reinforced by cultivation processes; for example, descendants of a plant that is notably drought tolerant may become iteratively more so through selective breeding as farmers regard it as better for dry areas and prioritize planting it in those locations. This is one way in which farming systems can develop a portfolio of landraces over time that have specific ecological niches and uses.<ref name="distinctiveness" />

Conversely, modern cultivars can also be developed into a landrace over time when farmers save seed and practice selective breeding.<ref name="Participatory">Template:Cite book</ref>

Although landraces are often discussed once they have become endemic to a particular geographical region, landraces have always been moved over long and short distances. Some landraces can adapt to various environments, while others only thrive within specific conditions. Self-fertilizing and vegetatively populated species adapt by changing the frequencies of phenotypes. Outbreeding crops absorb new genotypes through intentional and unintentional hybridization, or through mutation.<ref name="Zeven" />

A clear example of vegetal landrace would consist in the diverse adaptations of wheat to differential artificial selection constraints.<ref>Template:Cite journal</ref>

Cultivars developed from landracesEdit

Members of a landrace variety, selected for uniformity with regards to a unique feature over a period of time, can be developed into a farmers' variety or cultivar.<ref name="Ramanandan">Template:Cite book</ref> Traits from landraces are valuable for incorporation into elite lines.<ref name="Relatives" /> Crop disease resistance genes from landraces can provide eternally-needed resistances to more widely-used, modern varieties.<ref name="Relatives">Template:Cite journal</ref>

Examples of plant landracesEdit

BeansEdit

Name Species Origin Description
Caparrona bean<ref name="improve-adaptation">Template:Cite journal</ref> Phaseolus vulgaris Monzón, Italy Also known by the name of Caparrona de Monzón, characterized by highly productive plants with white beans that have a brown pattern around the hilum, medium brilliance, and oval shape. The Caparrona bean is usually used as a dry bean but can also be eaten as a green bean.<ref name="recovery-bean-landrace">Template:Cite journal</ref>
Ganxet bean<ref name="improve-adaptation" />

CarrotsEdit

Name Species Origin Description
Carota di Polignano Daucus carota Polignano, Italy Multicolored roots from yellow to purple<ref name="improve-adaptation" /><ref name="carota-di-polignano">Template:Cite journal</ref>

MaizeEdit

Name Species Origin Description
Sierra Mixe corn Zea mays Sierra Mixe Unusually tall and with aerial roots which secrete mucus which supports nitrogen-fixing bacteria

OkraEdit

Name Species Origin Description
Khandahar Pendi Abelmoschus esculentus Afghanistan Has green, red, pink, or white pods that have a variety of shapes and sizes.<ref name="nyt-adventurous">Template:Cite news</ref>

PeasEdit

Name Species Origin Description
Maruti Cajanus cajan<ref name="Ramanandan" />

PeppersEdit

Name Species Origin Description
Cacho de cabra Capsicum annuum Maule region of Chile Considered to be the most popular in the region of Maule<ref name="central-chile">Template:Cite journal</ref>
Chileno negro Capsicum baccatum Maule region of Chile<ref name="central-chile" />
Chimayó pepper Chimayó, New Mexico Considered the most well known of the New Mexico chile landraces<ref name="nmsu">{{#invoke:citation/CS1|citation CitationClass=web

}}</ref>

Santo Domingo Pueblo chili Santo Domingo Pueblo An early-maturing landrace from the pueblo that served as a headquarters for Spanish colonial missions as well as a key location of resistance against the Spanish settlers in the 1600s.<ref name="nmsu" />

RiceEdit

Name Species Origin Description
Jumli Marshi Nepal A cold-tolerant and popular rice landrace grown in mountain ecosystems. An evolutionary plant breeding program was used to increase its resistance to blast disease while maintaining landrace diversity.<ref name="evolutionary-nepal">Template:Cite journal</ref>
Kalanamak rice<ref name="improve-adaptation" />

SquashEdit

Name Species Origin Description
Berrettina di Lungavilla Cucurbita maxima Po river floodplain, Italy From the Po floodplain in Northern Italy that nearly went extinct<ref name="berrettina">Template:Cite journal</ref>
Cappello da prete<ref name="improve-adaptation" />
Plato kuum, cmejen kuum, calabacita kuum, xplato, ’kuum Likely Cucurbita moschata Yucatán, Mexico Squash with 'pepita menuda' (Spanish) meaning 'thin seeds' Known as the 'little sister' to Cucurbita moschata Xnuk kuum. Xplato (Mayan-Spanish) literally translates to flat plate. Used for making a sweet called calabaza melada.<ref name="gendered-varietal">Template:Cite journal</ref>
Candy roaster<ref name="improve-adaptation" /> Cucurbita maxima Southern Appalachia Developed by the Cherokee people. A United States Department of Agriculture accession in 1960 notes that Candy Roasters had been grown for more than 100 years as of that date.<ref name="plant-inventory">Template:Cite book</ref> It is variable in size and shape with more than 40 distinct forms according to one authority.<ref name="saving-seeds">Template:Cite book</ref> Candy roasters consistently feature fine-textured orange flesh, while varying in size (from 10 lbs to more than 250 lbs); shape (including round, cylindrical, teardrop, and blocky); and color (pink, tan, green, blue, gray, and orange).<ref name="pursuing-potential">Template:Cite journal</ref>
Lakota squash Cucurbita maxima Nebraska Developed from a squash landrace grown by Native Americans living along the Missouri Valley along with germplasm from Hubbard squash or a similar cultivar<ref name="unledu">Template:Cite journal</ref>
Nanticoke squash<ref name="improve-adaptation" /> Cucurbita maxima Maryland and Delaware Cultivated by the Nanticoke (or Kuskarawaok) people, one of the southernmost groups in the Algonquin language family, who lived in the area now known as Maryland and Delaware during the American colonial period when Cucurbita maxima arrived in North America. The wide diversity of the fruit reflects the genetic diversity of the landrace.<ref name="nyt-adventurous" />
Seminole Pumpkin<ref name="improve-adaptation" /> Cucurbita moschata Florida A landrace originally cultivated by the Seminole people of what is now Florida. Naturalists recorded Seminole pumpkins hanging from trees in the 18th century.<ref name="species-crosses">Template:Cite journal</ref><ref name="echo-seminole">{{#invoke:citation/CS1|citation CitationClass=web

}}</ref>

TomatilloEdit

Name Species Origin Description
Acorazado, Acorazonado, Queen of Malinalco, Reina de Malinalco Physalis ixocarpa Malinalco citation CitationClass=web

}}</ref>

TomatoesEdit

Name Species Origin Description
Coeur de bue tomato<ref name="tomato-metabolite">Template:Cite journal</ref>
Corborino tomato<ref name="tomato-metabolite" />
Lucariello tomato<ref name="tomato-metabolite" />
San Marzano tomato<ref name="tomato-metabolite" /> Solanum lycopersicum Campania, Italy

WheatEdit

Name Species Origin Description
Arndeto<ref name="improve-adaptation" />
Aybo<ref name="improve-adaptation" />
Enat gebs<ref name="improve-adaptation" />
Kurkure<ref name="improve-adaptation" />
Loko<ref name="improve-adaptation" />
Meher gebs<ref name="improve-adaptation" />
Mengesha<ref name="improve-adaptation" />
Nechita<ref name="improve-adaptation" />
Sene gebs<ref name="improve-adaptation" />
Set-Akuri<ref name="improve-adaptation" />
Temej<ref name="improve-adaptation" />
Tikur gebs<ref name="improve-adaptation" />

AnimalsEdit

Template:Anchor

Animal landrace developmentEdit

Some standardized animal breeds originate from attempts to make landraces more consistent through selective breeding, and a landrace may become a more formal breed with the creation of a breed registry or publication of a breed standard. In such a case, one may think of the landrace as a "stage" in breed development. However, in other cases, formalizing a landrace may result in the genetic resource of a landrace being lost through crossbreeding.<ref name="Sponenberg 2000">Template:Cite book</ref>

While many landrace animals are associated with farming, other domestic animals have been put to use as modes of transportation, as companion animals, for sporting purposes, and for other non-farming uses, so their geographic distribution may differ. For example, horse landraces are less common because human use of them for transport has meant that they have moved with people more commonly and constantly than most other domestic animals, reducing the incidence of populations locally genetically isolated for extensive periods of time.<ref name="Sponenberg 2000" />

Examples of animal landracesEdit

CatsEdit

Many standardized breeds have rather recently (within a century or less) been derived from landraces. Examples, often called natural breeds, include Arabian Mau, Egyptian Mau, Korat, Kurilian Bobtail, Maine Coon, Manx, Norwegian Forest Cat, Siberian, and Siamese.

In some cases, such as the Turkish Angora and Turkish Van breeds and their possible derivation from the Van cat landrace, the relationships are not entirely clear.

Name Species Origin Description
Cyprus
Aegean
Domestic long-haired
Domestic short-haired
Kellas
Sokoke
Thai Thailand The ancestor of the Siamese cat breed, among many others.
Van cat Turkey The Van cat of modern-day Turkey is a landrace of symbolic and (disputed) cultural value to Turks, Armenians and Kurds.

CattleEdit

Name Species Origin Description
Icelandic cattle Iceland As a population dating from the era of Icelandic settlement they are likely the oldest cattle landrace in Europe, owing to their genetic isolation for most of that time.<ref name="hobbyfarms">{{#invoke:citation/CS1|citation CitationClass=web

}}</ref>

Yakutian cattle Sakha Republic, Russian Federation Noted as the northernmost cattle landrace, and the most genetically dissimilar to other cattle.<ref name=gsejournal>Template:Cite journal</ref><ref name="Heredity 103">Template:Cite journal</ref> This group of cattle may represent a fourth Aurochs domestication event (and a third event among Bos taurus–type aurochs) and may have diverged from the Near East group some 35,000 years ago.<ref name="Mannen2004">Template:Cite journal</ref> Yakutian cattle are the last remaining native Turano-Mongolian cattle breed in Siberia,<ref name="gsejournal" /> and one of only a few pure Turano-Mongolian breeds remaining worldwide.<ref name="Heredity 103" /> Studies of DNA markers on autosomes show a high genetic distinctiveness and point to a long-term genetic isolation from other breeds; geographic isolation beyond the normal northern limit of the species range can be assumed to be the cause.<ref name="GlobalDiv 12/2009">Juha Kantanen (30 December 2009): "Article of the month – The Yakutian cattle: A cow of the permafrost." Template:Webarchive GlobalDiv Newsletter, 2009, issue no. 12, pp. 3–6. 1 picture. Retrieved 30 June 2013.</ref><ref name="genomic-resources ENAC">genomic-resources ENAC (14 August 2012): "Success case study – Yakutian Cattle in the land of permafrost." 1 picture. Retrieved 30 June 2013.</ref>

DogsEdit

Template:Cleanup

Dog landraces and the selectively bred dog breeds that follow breed standards vary widely depending on their origins and purpose.<ref name=grandin>Template:Cite book</ref> Landraces are distinguished from dog breeds which have breed standards, breed clubs and registries.<ref name=Mother>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Landrace dogs have more variety in their appearance than do standardized dog breeds.<ref name=Mother/> An example of a dog landrace with a related standardized breed with a similar name is the collie. The Scotch Collie is a landrace, while the Rough Collie and the Border Collie are standardized breeds. They can be very different in appearance, though the Rough Collie in particular was developed from the Scotch Collie by inbreeding to fix certain highly desired traits. In contrast to the landrace, in the various standardized Collie breeds, purebred individuals closely match a breed-standard appearance but might have lost other useful characteristics and have developed undesirable traits linked to inbreeding.<ref name=Ward>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

The ancient landrace dogs of the Fertile Crescent that led to the Saluki breed excels in running down game across open tracts of hot desert, but conformation-bred individuals of the breed are not necessarily able to chase and catch desert hares.Template:Citation needed

Name Species Origin Description
Africanis Southern Africa Dogs that migrated with Bantu tribes into Southern Africa. The dogs were free to mates amongst themselves without any selective breeding.
Carolina Dog or Yellow Dog United States citation CitationClass=web

}}</ref> this landrace has been the basis of the Carolina Dog standardized breed.

Scotch Collie Scotland The Rough Collie was bred from the Scotch Collie landrace.<ref name="Ward" />
St. John's water dog Newfoundland, Canada Served as the foundational stock for a number of purpose-bred dogs, such as the Labrador Retriever, Chesapeake Bay Retriever, Cape Shore Water Dog, and Newfoundland.
Saluki Fertile Crescent

GoatsEdit

Some standardized breeds that are derived from landraces include the Dutch Landrace, Swedish Landrace and Finnish Landrace goats. The Danish Landrace is a modern mix of three different breeds, one of which was a "Landrace"-named breed.

Name Species Origin Description
British primitive goat British Isles Dates to the Neolithic era and possibly has existed as feral herds continuously since that time.
Icelandic goat Iceland Can be dated to the Icelandic Age of Settlement and the population is presumed to have been genetically isolated for nearly the entirety of that time period
Spanish goat Spain This landrace survives in larger numbers in the American South as the "brush goat" or "scrub goat", among other names than in Spain.

SheepEdit

Name Species Origin Description
Barbados Blackbelly Barbados
Icelandic sheep Iceland
Shetland sheep Shetland Isles, Scotland
Spælsau sheep Norway Dates to the Iron Age
Welsh mountain sheep Wales

HorsesEdit

The wild progenitor of the domestic horse is extinct.<ref name="Sponenberg 2000" /> It is rare for landraces among domestic horses to remain isolated, due to human use of horses for transportation, thus causing horses to move from one local population to another.

The heavy 'draft' type of domestic horse, developed in Europe, has differentiated into many separate landraces or breeds.Template:Citation needed Examples of horse landraces also include insular populations in Greece and Indonesia, and, on a broader scale, New World populations derived from the founder stock of Colonial Spanish horse.<ref name="Sponenberg 2000" />

The Yakutian and Mongolian Horses of Asia have "unimproved" characteristics.<ref name="hendricks1995">Template:Citation</ref>

Name Species Origin Description
Icelandic horse<ref name="Sponenberg 2000" /> Iceland
Newfoundland pony Newfoundland
Shetland pony Shetland

PigsEdit

The standardized swine breeds named "Landrace" are often not actually landraces or derived from landraces. The Danish Landrace pig breed, pedigreed in 1896 from an actual local landrace, is the principal ancestor of the American Landrace (1930s). In this way, the Swedish Landrace is derived from the Danish and from other Scandinavian breeds, as is the British Landrace breed.

Name Species Origin Description
Baudin pig Kangaroo Island, South Australia Once a feral landrace, it is now extinct in the wild.
Mulefoot pig<ref name="Sponenberg 2000" /> The Mulefoot pig originated as a landrace, but has been standardized since the early 1900s.
Lindröd pig Skåne, Sweden The breed originates from a population at Skånes Djurpark, that was found on Linderödsåsen in the 1950s. It is thought to be the last remaining population of an older breed of pigs kept in the deciduous forests of southern Sweden.<ref>{{#invoke:citation/CS1|citation CitationClass=web

}}</ref>

ChickenEdit

Name Species Origin Description
Danish hen Denmark
Icelandic chicken Iceland
Jærhøns Norway
Swedish flower hen Sweden
Shetland hen Scotland

DucksEdit

Name Species Origin Description
Danish landrace duck Denmark citation CitationClass=web

}}</ref>

Swedish Blue duck Sweden A modern breed of the same name is derived from the landrace.

GeeseEdit

Many standardized goose breeds named "Landrace", e.g. the Twente Landrace goose, are not actually true landraces, but may be derived from them.

Name Species Origin Description
Danish landrace goose Denmark
Pilgrim goose New England This landrace is associated with the Mayflower Pilgrims of Plymouth Colony, and has also been standardised as a formal breed since 1939. It is thought to descend from western European stock dating of the 17th century.<ref name="Nabhan">Template:Cite book</ref>

RabbitsEdit

Name Species Origin Description
Gotland rabbit Gotland This landrace is subject to conservation efforts.
Mellerud rabbit Sweden This landrace is subject to conservation efforts.

See alsoEdit

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ReferencesEdit

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External linksEdit

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