In domestic animals, race is a taxonomic rank below the species. The races are distinguished for the purpose of breeding and selection. There is talk of cattle breeds, dog or goat. The term is more commercial than scientific coloring an animal of "race" is simply a higher price, arguing the qualities of its subgroup (TICA ragdoll breeders).
The pet is sometimes considered a separate species, however, the tendency is to classify it as a sub-species of wildlife species: the dog canis familiaris from canis lupus familiaris to. Under this classification, all dogs of all sizes and breeds from around the world is equated with a geographical subspecies as arctic wolf: Canis lupus arctos.Conversely, some breeds of domestic animals can be from several subspecies, such as the African zebu zebu from India and beef, or even several species like some pig breeds from Sus scrofa and Sus celebensis. In plants it uses the terms of cultivated varieties or cultivars.
This article relates more particularly to use of word "race" to refer to groups of same species. Botanical nomenclature and mycological hence the term "race" is not a codified taxonomic rank, we speak of variety. It remains possible to use the word "animal variety" 4 to designate a selected domestic animal population consists of a fraction of animals of a species that special treatment selection have resulted distinguished from other animals of case by a small number of characters whose enumeration defines the model.
Drafting laws of heredity based on the work of Gregor Mendel used to connect a breed with a particular genotype. To understand this relationship, it is necessary to distinguish two notions: observable characters (the individual's phenotype) and the information carried by the genome (genotype of individual).
Individuals of subspecies always remaining interbreeding, often observed within a species of being isolated populations, sometimes with morphological differences, sometimes ecological differences (ecotypes) no necessary correlation with their condition genetic differentiation.
The terms "pure race" or "racial fixed" often do not correspond to an objective reality given the history of races, and selection which they are subject. The horse says thoroughbred for example, is a cross between British mares and stallions beards, from the Maghreb, and probably of Arabian horses. However, these terms can be taken with a relative sense, and there are homogeneous and ancient races.
A breeding race is determined in several ways: It can describe the population of domestic species of a region that has a certain homogeneity; It can be defined primarily by a standard, that is to say a set of criteria that define the ideal individual. These criteria are often limited to shape, size and color for pets and ornament. To this is added in some cases special skills, such as attitudes to herd some sheep dog breeds.
For example, in France alone and in 100 years, the number of livestock breeds has increased from several hundred to a dozen in 2000s and when an "animal race" exists, the fact remains that some individuals, that is to say, the diversity of its genetic heritage has greatly impoverished, undermining the ecological resilience of agro-systems and may render the adaptation of farming difficult to climate change and diseases.
The pet is sometimes considered a separate species, however, the tendency is to classify it as a sub-species of wildlife species: the dog canis familiaris from canis lupus familiaris to. Under this classification, all dogs of all sizes and breeds from around the world is equated with a geographical subspecies as arctic wolf: Canis lupus arctos.Conversely, some breeds of domestic animals can be from several subspecies, such as the African zebu zebu from India and beef, or even several species like some pig breeds from Sus scrofa and Sus celebensis. In plants it uses the terms of cultivated varieties or cultivars.
This article relates more particularly to use of word "race" to refer to groups of same species. Botanical nomenclature and mycological hence the term "race" is not a codified taxonomic rank, we speak of variety. It remains possible to use the word "animal variety" 4 to designate a selected domestic animal population consists of a fraction of animals of a species that special treatment selection have resulted distinguished from other animals of case by a small number of characters whose enumeration defines the model.
Drafting laws of heredity based on the work of Gregor Mendel used to connect a breed with a particular genotype. To understand this relationship, it is necessary to distinguish two notions: observable characters (the individual's phenotype) and the information carried by the genome (genotype of individual).
Individuals of subspecies always remaining interbreeding, often observed within a species of being isolated populations, sometimes with morphological differences, sometimes ecological differences (ecotypes) no necessary correlation with their condition genetic differentiation.
The terms "pure race" or "racial fixed" often do not correspond to an objective reality given the history of races, and selection which they are subject. The horse says thoroughbred for example, is a cross between British mares and stallions beards, from the Maghreb, and probably of Arabian horses. However, these terms can be taken with a relative sense, and there are homogeneous and ancient races.
A breeding race is determined in several ways: It can describe the population of domestic species of a region that has a certain homogeneity; It can be defined primarily by a standard, that is to say a set of criteria that define the ideal individual. These criteria are often limited to shape, size and color for pets and ornament. To this is added in some cases special skills, such as attitudes to herd some sheep dog breeds.
For example, in France alone and in 100 years, the number of livestock breeds has increased from several hundred to a dozen in 2000s and when an "animal race" exists, the fact remains that some individuals, that is to say, the diversity of its genetic heritage has greatly impoverished, undermining the ecological resilience of agro-systems and may render the adaptation of farming difficult to climate change and diseases.
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