The genetic contribution to canine personality.
Genes Brain Behav
; 5(3): 240-8, 2006 Apr.
Article
en En
| MEDLINE
| ID: mdl-16594977
The domestic dog may be exceptionally well suited for behavioral genetic studies owing to its population history and the striking behavior differences among breeds. To explore to what extent and how behavioral traits are transmitted between generations, heritabilities and genetic correlations for behavioral traits were estimated in a cohort containing over 10,000 behaviorally tested German shepherd and Rottweiler dogs. In both breeds, the pattern of co-inheritance was found to be similar for the 16 examined behavioral traits. Furthermore, over 50% of the additive genetic variation of the behavioral traits could be explained by one underlying principal component, indicating a shared genetic component behind most of the examined behavioral traits. Only aggression appears to be inherited independently of the other traits. The results support a genetic basis for a broad personality trait previously named shyness-boldness dimension, and heritability was estimated to be 0.25 in the two breeds. Therefore, breeds of dogs appear to constitute a valuable resource for behavioral genetic research on the normal behavioral differences in broad personality traits.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Personalidad
/
Variación Genética
/
Conducta Animal
/
Perros
Tipo de estudio:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Risk_factors_studies
Límite:
Animals
Idioma:
En
Revista:
Genes Brain Behav
Asunto de la revista:
CIENCIAS DO COMPORTAMENTO
/
GENETICA
Año:
2006
Tipo del documento:
Article
País de afiliación:
Suecia
Pais de publicación:
Reino Unido