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La variación del pelaje en el perro doméstico se rige por variantes en tres genes
Edouard Cadieu1, Mark W Neff, Pascale Quignon
1National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA.
Science (New York, N.Y.)
|August 29, 2009
Resumen
Los investigadores identificaron tres genes clave (RSPO2, FGF5 y KRT71) responsables de la mayoría de los fenotipos de pelaje canino. Estos factores genéticos explican los diversos tipos de pelaje y patrones observados en los perros domésticos.
Área de la Ciencia:
- Genética La genética.
- Ciencias de los animales Ciencias de los animales.
- Genómica Canina La genómica canina es la genómica de los perros.
Sus antecedentes:
- El color y el tipo de pelaje son cruciales para las razas de perros domésticos.
- La base genética para el color del pelaje se entiende, pero los genes para el crecimiento del pelaje, la longitud y el rizado son menos conocidos.
Objetivo del estudio:
- Para identificar los genes asociados con los fenotipos de pelaje canino.
- Comprender las bases genéticas de las variaciones de pelaje en perros.
Principales métodos:
- Se realizaron estudios de asociación de todo el genoma (GWAS) en más de 1000 perros de 80 razas.
- Se aprovechó la variabilidad entre y dentro de la raza para identificar las mutaciones causantes.
Principales resultados:
- Se identificaron mutaciones distintas en tres genes (RSPO2, FGF5 y KRT71).
- Estos tres genes explican colectivamente la mayoría de los fenotipos de pelaje en perros de raza pura estadounidenses.
Conclusiones:
- Algunos genes influyen significativamente en diversos y complejos fenotipos de pelaje canino.
- El estudio simplifica la comprensión de las variaciones del pelaje canino a través de factores genéticos clave.
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