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Title: Use of microsatellites for genetic variation and inbreeding
Authors: Pariset, Lorraine
Savarese, Maria Carmela
Cappuccio, Irene
Valentini, Alessio
Issue Date: 2003
Publisher: Blackwell Verlag, Berlin
Source: Pariset, L.; Savarese, M. C.; Cappuccio, I.; Valentini, A. (2003) Use of microsatellites for genetic variation and inbreeding analysis in Sarda sheep flocks of central Italy Journal of Animal Breeding and Genetics Volume: 120, Issue: 6, December 2003, pp. 425-432
A set of 11 polymorphic microsatellites has been used to assess the distribution of genetic variability in
17 flocks of the Sarda sheep breed in the Viterbo province, located in central Italy. The suitability of
samples size and number of loci analysed were tested using a bootstrap procedure. The data obtained
were used to estimate the genetic diversity within and among flocks, and to test the presence of
inbreeding within flocks. To study the genetic relationship among flocks, a principal component
analysis based on Nei standard distances was performed. The results of genetic analysis show a
significant excess of homozygotes in some of the flocks. The use of genetic data for maximum
likelihood tests of assignment is investigated in order to establish suitable breeding policies. This
research represents a case study for the development of mating strategies suitable for incrementing
genetic variability within flocks that can be applied in other domestic species showing similar breeding
problems (goat, buffalo and small populations of cattle).
ISSN: 0931–2668
Appears in Collections:DiPA - Archivio della produzione scientifica

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