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Genetic diversity of dog breeds: between-breed diversity, breed assignation and conservation approaches
Authors:G. Leroy  E. Verrier  J. C. Meriaux   X. Rognon
Affiliation:AgroParisTech, UMR1236 Génétique et DiversitéAnimales, 16 rue Claude Bernard, F-75321 Paris, France;. INRA, UMR1236 Génétique et DiversitéAnimales, Domaine de Vilvert, F-78352 Jouy-en-Josas, France;. SociétéCentrale Canine, 155 av. Jean Jaurès, F-93535 Aubervilliers, France;. LABOGENA, Domaine de Vilvert, F-78352 Jouy-en-Josas, France
Abstract: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.
Keywords:breed assignment    dog    genetic relationships    microsatellite
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