agouti

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a·gou·ti

(ah-gu'tē),
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]

Agouti

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.

agouti

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.
References in periodicals archive ?
"She asked me if I was interested in joining a project to return agoutis to Tijuca," recalled Fernandez.
The CrP was functional in 42 (98%) female agoutis (Figure 2a), while AP1, AP2, and CaP was functional in 22 (51%) (Figure 2b), 9 (20%) (Figure 2c) and 19 (44%) (Figure 2d) female agoutis, respectively.
Agoutis have a postpartum estrus of an average of 12.4 days, which corroborates with Weir (1971).
Behavioral ecology of paca (Agouti paca) on Barro Colorado Island, Panama.--Ms thesis, Univ.
A preliminary technique for electroejaculation of agouti (Dasyprocta leporina).
A rodent related to the guinea pig, the agouti looks more like a huge rat without a tail.
Most seeds taken to burrows, trees, and logs were clearly taken by small animals, probably rodents, because the small diameter of the opening would exclude larger species such as agoutis (Dasyprocta punctata).
Agoutis (Dasyprocta punctata), the inheritors of guapinol (Hymenaea courbaril: Leguminosae).
Density estimates from transect counts and from more intensive census methods are very similar for agoutis, coatis, and collared peccaries.
Usually, the agoutis bury the nuts within one hundred feet of the tree and sometimes use reference points to remind them of the locations.