Locus A (Agouti Locus)
£43.00
The A locus controls patterns like fawn, wolf sable, tan points, and recessive black. Its four alleles—ay, aw, at, and a—express according to a clear hierarchy, but can be hidden by KB or e/e. Testing this locus helps reveal hidden patterns and predict coat colours accurately.
A Locus (Agouti Locus)
The A locus controls several important coat patterns in dogs, including fawn, wolf sable, tan points, and recessive black.
There are four main alleles that follow a clear hierarchy:
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ay – fawn
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aw – wolf sable
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at – tan points / saddle tan
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a – recessive black
These alleles can be hidden by the KB (dominant black) allele or by e/e (recessive red).
Testing this locus helps breeders and owners understand hidden colours, plan future litters, and predict coat patterns more accurately.
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