Agouti fur is the wild type pigmentation for many domesticated mammals. It is a highly recognized characteristic trait of several animals, including many wild canids, wild felids, wild rabbits, and wild rodents, such as the namesake agouti.

The agouti gene, the Agouti-signaling protein (ASIP) is responsible for variations in color in many species. Agouti works with extension to regulate the color of melanin which is produced in hairs. The agouti protein causes red to yellow pheomelanin to be produced, while the competing molecule α-MSH signals production of brown to black eumelanin.

2022年2月6日 · Agouti is the wild type when it comes to canine coat coloration. It is found in grey wolves and all sorts of other wild animals where it causes a dull grey or brownish appearance. The A-Locus determines the temporal and spatial distribution of phaeomelanin in a variety of different color patterns.

The agouti gene controls the distribution of black pigment, and determines whether a horse will have a bay or black base coat color.

2024年1月30日 · Agouti always includes some dark eumelanin face shading. Typical agouti markings include a dark nose bar on top of the muzzle and some dark shading under the eyes, often forming what’s called spectacles or goggles or eye shadow.

2021年3月30日 · ALL colors in the Holland Lop AGOUTI GROUP are ALWAYS a minimum of "A-E-". A CHESTNUT AGOUTI is all dominant: A_B_C_D_E_. A Chocolate Agouti is made simply by changing the "B" for black, to "bb" for Chocolate.

2023年12月20日 · The agouti allele causes a specific type of pigmentation, called agouti pigmentation, which is characterized by alternating bands of dark and light colors along the hair shaft. In contrast, the non-agouti allele results in a solid color without banding.

The agouti signaling protein interacts with the melanocortin 1 receptor to switch between black and red pigments, creating a banding pattern in individual hairs. Mutations in the agouti signaling protein gene (ASIP) prevent this switch from occurring, resulting in hairs of uniform color.

Non-agouti, aa, cats are solid (self) in color. Tabby patterns are difficult to identify. Gradual replacement of eumelanin with phaeomelanin, in Norwegian Forest cats. Brown variants have reduced eumelanin and appear brownish in color. b/b and b/b l are chocolate, b l /b l are cinnamon (red). Color controls production of melanin.

2011年8月3日 · Specific colors: Chestnut, Black-and-Tan, and Chocolate. The Agouti pattern is the wild rabbit pattern. It’s the lovely interplay of color pigments in their original form. You can tell if you have an agouti patterned rabbit, if it has dark hairs, called “ticking,” interspersed among their lighter middle coat.