Genetic characterization of the Bardigiano horse using microsatellite markers

The study was aimed at investigating the genetic structure of the Bardigiano horse and its relationships with the Haflinger, Maremmano and Arabian breeds using 11 microsatellite markers. A total of 94 alleles were detected across the breeds, with a mean of 8.5 alleles per locus and a mean observed h...

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Main Authors: Claudio Lisa, Michele Blasi, Giovanna Perrotta, Liliana Di Stasio
Format: Article
Language:English
Published: Taylor & Francis Group 2010-01-01
Series:Italian Journal of Animal Science
Subjects:
Online Access:http://www.aspajournal.it/index.php/ijas/article/view/368
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author Claudio Lisa
Michele Blasi
Giovanna Perrotta
Liliana Di Stasio
author_facet Claudio Lisa
Michele Blasi
Giovanna Perrotta
Liliana Di Stasio
author_sort Claudio Lisa
collection DOAJ
description The study was aimed at investigating the genetic structure of the Bardigiano horse and its relationships with the Haflinger, Maremmano and Arabian breeds using 11 microsatellite markers. A total of 94 alleles were detected across the breeds, with a mean of 8.5 alleles per locus and a mean observed heterozygosity of 0.69. Compared to the other breeds, the Bardigiano horse showed quite a high genetic variability, as indicated by the mean number of alleles (7.0 vs 6.1÷7.6) and by the observed heterozygosity (0.72 vs 0.66÷0.71). Moreover, the genotype distributions in the Bardigiano groups of different sex and age were not significantly different. The overall FST value showed that the genetic differences among breeds accounted for 7.8% (P=0.001) of the total variation, and the pairwise FST values were all significant. The assignment test allocated between 96.8 and 98.9% of the individuals to the population they were collected from, with a mean probability of assignment of about 97% for all breeds, except for the Arabian, where it approached 100%. The results have highlighted that the Bardigiano breed has a high within and between breed variability, which is considerably more than could be expected by looking at its evolution history. This justifies the need for the development of additional breeding strategies to preserve the existing genetic variability.
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spelling doaj.art-465efc35125447b5a42a468eff0844952022-12-22T03:58:08ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2010-01-017224325010.4081/ijas.2008.243Genetic characterization of the Bardigiano horse using microsatellite markersClaudio LisaMichele BlasiGiovanna PerrottaLiliana Di StasioThe study was aimed at investigating the genetic structure of the Bardigiano horse and its relationships with the Haflinger, Maremmano and Arabian breeds using 11 microsatellite markers. A total of 94 alleles were detected across the breeds, with a mean of 8.5 alleles per locus and a mean observed heterozygosity of 0.69. Compared to the other breeds, the Bardigiano horse showed quite a high genetic variability, as indicated by the mean number of alleles (7.0 vs 6.1÷7.6) and by the observed heterozygosity (0.72 vs 0.66÷0.71). Moreover, the genotype distributions in the Bardigiano groups of different sex and age were not significantly different. The overall FST value showed that the genetic differences among breeds accounted for 7.8% (P=0.001) of the total variation, and the pairwise FST values were all significant. The assignment test allocated between 96.8 and 98.9% of the individuals to the population they were collected from, with a mean probability of assignment of about 97% for all breeds, except for the Arabian, where it approached 100%. The results have highlighted that the Bardigiano breed has a high within and between breed variability, which is considerably more than could be expected by looking at its evolution history. This justifies the need for the development of additional breeding strategies to preserve the existing genetic variability.http://www.aspajournal.it/index.php/ijas/article/view/368Horse, Bardigiano, Genetic characterization, Microsatellites.
spellingShingle Claudio Lisa
Michele Blasi
Giovanna Perrotta
Liliana Di Stasio
Genetic characterization of the Bardigiano horse using microsatellite markers
Italian Journal of Animal Science
Horse, Bardigiano, Genetic characterization, Microsatellites.
title Genetic characterization of the Bardigiano horse using microsatellite markers
title_full Genetic characterization of the Bardigiano horse using microsatellite markers
title_fullStr Genetic characterization of the Bardigiano horse using microsatellite markers
title_full_unstemmed Genetic characterization of the Bardigiano horse using microsatellite markers
title_short Genetic characterization of the Bardigiano horse using microsatellite markers
title_sort genetic characterization of the bardigiano horse using microsatellite markers
topic Horse, Bardigiano, Genetic characterization, Microsatellites.
url http://www.aspajournal.it/index.php/ijas/article/view/368
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AT micheleblasi geneticcharacterizationofthebardigianohorseusingmicrosatellitemarkers
AT giovannaperrotta geneticcharacterizationofthebardigianohorseusingmicrosatellitemarkers
AT lilianadistasio geneticcharacterizationofthebardigianohorseusingmicrosatellitemarkers