Genetic diversity of dog breeds: between-breed diversity, breed assignation and conservation approaches

Genetic relationships between 61 dog breeds were investigated, using a sampling of 1514 animals and a panel of 21 microsatellite markers. Based on the results from distance-based and Bayesian methods, breed constituted the main genetic structure, while groups including genetically close breeds showe...

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Bibliographic Details
Published in:Animal genetics 2009-06, Vol.40 (3), p.333-343
Main Authors: Leroy, G, Verrier, E, Meriaux, J.C, Rognon, X
Format: Article
Language:English
Subjects:
Animals
Bayes Theorem
breed assignment
Breeding
DNA - chemistry
DNA - genetics
dog
dogs
Dogs - genetics
genetic relationships
Genetic Variation
Genetics, Population
Life Sciences
microsatellite
microsatellite repeats
Microsatellite Repeats - genetics
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Summary:Genetic relationships between 61 dog breeds were investigated, using a sampling of 1514 animals and a panel of 21 microsatellite markers. Based on the results from distance-based and Bayesian methods, breed constituted the main genetic structure, while groups including genetically close breeds showed a very weak structure. Depending on the method used, between 85.7% and 98.3% of dogs could be assigned to their breed, with large variations according to the breed. However, breed heterozygosity influenced assignment results differently according to the method used. Within-breed and between-breed diversity variations when breeds were removed were highly negatively correlated (r = -0.963, P < 0.0001), because of the genetic structure of the breed set.
ISSN:0268-9146
1365-2052
DOI:10.1111/j.1365-2052.2008.01843.x