Genetic diversity and relationships among Italian Merino derived breeds assessed by microsatellites
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Autor
Ceccobelli, Simone
Lasagna, Emiliano
Landi, Vincenzo
Martínez Martínez, Amparo
Sarti, Francesca Maria
Editor
Associazione per la Scienza e le Produzioni AnimaliFecha
2009Materia
Molecular markersSpanish Merino
Italian Merino-derived breeds
Genetic variability
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The conservation of genetic variability is one of the main objectives in the field of
genetics applied to domestic livestock. Among molecular markers, microsatellites are particularly
appreciated and widely utilized for the study of animal genome. In this study a genetic
characterization of three Italian Merino derived sheep breeds was carried out by 30 microsatellites
markers; the genetic relationships between these breeds and the Spanish ancestors were
also investigated. All the microsatellites examined resulted polymorphic and a total of 375 alleles
were detected. FIS values of the three Italian Merinos demonstrate a low level of inbreeding.
The results show a good genetic variability of all the studied breeds; at the same time, the
genetic identity of each breed is confirmed. These molecular data can be utilized to improve the
present selection schemes and the plans to preserve genetic diversity