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The agouti factor determines the "background" of the tabby coat, which consists of hairs that are banded with dark eumelanin and lighter phaeomelanin along the length of the hair shaft. The Agouti gene , with its dominant A allele and recessive a allele, controls the coding for agouti signaling protein (ASIP; Q865F0 ).
A cat hair showing agouti coloration A domestic rabbit with agouti coloration. Agouti is a type of fur coloration in which each hair displays two or more bands of pigmentation. [1] [2] The overall appearance of agouti fur is usually gray or dull brown, [3] although dull yellow is also possible.
The dominant A expresses the underlying tabby pattern, while the recessive non-agouti or "hyper-melanistic" allele, a, does not. Solid-color (black or blue) cats have the aa combination, hiding the tabby pattern, although sometimes a suggestion of the underlying pattern can be seen ("ghost striping"). This underlying pattern, whether classic ...
An agouti dog, also called wolf sable. In dogs, the agouti gene is associated with various coat colors and patterns. [10]The alleles at the A locus are related to the production of agouti-signaling protein (ASIP) and determine whether an animal expresses an agouti appearance and, by controlling the distribution of pigment in individual hairs, what type of agouti.
The mane, tail, and ear rims are referred to as "trim" and roughly correspond to the "points" of horses. Most donkeys have light points. The coat colors without light points may be called "no light points", "dark points", or "black points". Dark points are caused by a recessive allele of agouti found in Normand and Miniature donkeys.
The brown agouti (Dasyprocta variegata) is a species of agouti in the family Dasyproctidae that is native to portions of central or southeastern Peru, east to western Brazil (specifically within the administrative divisions of Acre, Amazonas, and Rondônia), south to a strip of Bolivia. [1]
The agouti (/ ə ˈ ɡ uː t iː / ⓘ, ə-GOO-tee) or common agouti is many of several rodent species of the genus Dasyprocta. They are native to Middle America , northern and central South America , and the southern Lesser Antilles .
Sokokes typically have blotched (i.e., large-spotted) tabby coats in shades of brown, broadly similar to those of the Bengal and Ocicat. [4] The centers or "oysters" of the patterns are hollow-looking due to the agouti gene , [ 13 ] which also produces a "ticked" or "salt and pepper" look to the coat, overall.