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Related to agouti: Common agouti


1. The wildtype hair color banding found in mammals; including some felidae; hairs are lighter or gray at the base and tipped with dark or blak pigment. Multiple banding on a hair may occur.
See also: Dasyprocta.
2. A tropic rodent.
See: Dasyprocta.
[Fr., native Indian]


Molecular biology A gene expressed during the hair-growth cycle in the neonatal skin of mice, in which it is a paracrine regulator of pigmentation. The secreted agouti protein antagonises binding of alpha-melanocyte-stimulating hormone to its receptor (melanocortin 1 receptor) on the surface of hair bulb melanocytes, altering intracellular cAMP levels. Because of its role in regulating coat colour, agouti has served as a model of gene action and interaction.
Zoology A popular term for any of the guinea pig-like rodents of the genus Dasyprocta, which are native to the Western Hemisphere.


a fur coloration in which there are alternating light and dark bands of colour on the individual hairs, giving a speckled brownish appearance. Such a fur coloration is found in mammals such as rabbits, rats and mice.


1. speedy, stout-bodied, nocturnal, South American rodent that bounds like a hare. Called also Dasyprocta aguti.
2. a pattern of pigmentation in which individual hairs have several bands of light and dark pigment with black tips. Seen in hares, Abyssinian cats, guinea pigs, and the agouti, after which it is named.
References in periodicals archive ?
However, going back to Jirtle's agouti mice experiment, the dramatic change in epigenetic programming that he accomplished was not through administration of complex synthetic compounds, but through simple vegetables like onions, beets, and leafy vegetables.
A Ia lista de mamiferos silvestres del Estado de Puebla, se agrega el de aguti, Agouti paca nelsoni, con base en los registros de cuatro ejemplares, procedentes de dos localidades en Ia selva tropical lluviosa de Ia Sierra Madre Oriental.
In this aspect, humans also have an agouti gene that encodes for the agouti signalling protein (ASIP) that is expressed in fat tissue and pancreas, and there is some correlation that obese individuals exhibit greater expression of this gene compared to leaner individuals.
A reexamination in 1984 of material obtained from Brumpt's and Joyeux' initial case of the agouti demonstrated that the larval stage of E.
In spite of the hunting that castaneros often undertake while harvesting, managed stands are correlated with higher concentrations of agouti than areas with no harvesting.
In 2003, when Waterland was at Duke University, he and Randy Jirtle altered the diet of yellow-coated mother agouti mice during their pregnancy.
In addition to the aberrant expression at the Agouti locus in the [A.
The role of this gene, called agouti, in camouflage was first discovered by Linnen, Hoekstra and colleagues in 2009, and it is responsible for changes in pigmentation in the coats of many animals.
twin studies), rats, cats (X-inactivation), and agouti mice.
However, supplementing pregnant Agouti mothers' diets with nutrients (including folate, B12, and other nutrients--not coincidentally, those included in human prenatal vitamins) leads to suppression of the Agouti gene through methylation, and resulting offspring show normal weight and disease risk and a brown coat color.
El tepezcuintle, Agouti paca (Rodentia: Agoutidae), en Tamaulipas, Mexico.
Epigenetic Inheritance at the Agouti Locus in the Mouse, 23 NATURE GENETICS 314 (1999) (describing the inheritance of epigenetic modifications in mice).