Genetic characterization of local Criollo pig breeds from the Americas using microsatellite markers

Little is known about local Criollo pig genetic resources and relationships among the various populations. In this paper, genetic diversity and relationships among 17 Criollo pig populations from 11 American countries were assessed with 24 microsatellite markers. Heterozygosities, F-statistics, and...

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Autores principales: Revidatti, María Antonia Susana, Delgado Bermejo, Juan Vicente, Gama, Luis Lavandhino Telo Da, Landi Periati, Vincenzo, Ginja, Catarina, Álvarez, Luz Angela, Vega-Pla, José Luis, Martínez Martínez, Amparo, BioPig Consortium
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Lenguaje:Inglés
Publicado: American Society of Animal Science 2024
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Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/54236
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spelling I48-R184-123456789-542362024-10-23T10:51:28Z Genetic characterization of local Criollo pig breeds from the Americas using microsatellite markers Revidatti, María Antonia Susana Delgado Bermejo, Juan Vicente Gama, Luis Lavandhino Telo Da Landi Periati, Vincenzo Ginja, Catarina Álvarez, Luz Angela Vega-Pla, José Luis Martínez Martínez, Amparo BioPig Consortium Admixture Biodiversity Criollo pigs Genetic resources Genetic structure Microsatellite Little is known about local Criollo pig genetic resources and relationships among the various populations. In this paper, genetic diversity and relationships among 17 Criollo pig populations from 11 American countries were assessed with 24 microsatellite markers. Heterozygosities, F-statistics, and genetic distances were estimated, and multivariate, genetic structure and admixture analyses were performed. The overall means for genetic variability parameters based on the 24 microsatellite markers were the following: mean number of alleles per locus of 6.25 ± 2.3; effective number of alleles per locus of 3.33 ± 1.56; allelic richness per locus of 4.61 ± 1.37; expected and observed heterozygosity of 0.62 ± 0.04 and 0.57 ± 0.02, respectively; within-population inbreeding coefficient of 0.089; and proportion of genetic variability accounted for by differences among breeds of 0.11 ± 0.01. Genetic differences were not significantly associated with the geographical location to which breeds were assigned or their country of origin. Still, the NeighborNet dendrogram depicted the clustering by geographic origin of several South American breeds (Criollo Boliviano, Criollo of northeastern Argentina wet, and Criollo of northeastern Argentina dry), but some unexpected results were also observed, such as the grouping of breeds from countries as distant as El Salvador, Mexico, Ecuador, and Cuba. The results of genetic structure and admixture analyses indicated that the most likely number of ancestral populations was 11, and most breeds clustered separately when this was the number of predefined populations, with the exception of some closely related breeds that shared the same cluster and others that were admixed. These results indicate that Criollo pigs represent important reservoirs of pig genetic diversity useful for local development as well as for the pig industry. 2024-06-10T12:14:44Z 2024-06-10T12:14:44Z 2014-11 Artículo Revidatti, María Antonia Susana, et al., 2014. Genetic characterization of local Criollo pig breeds from the Americas using microsatellite markers. Journal of Animal Science. Champaign: American Society of Animal Science, vol. 92, no. 11, p. 4823-4832. E-ISSN: 1525-3163. http://repositorio.unne.edu.ar/handle/123456789/54236 eng https://doi.org/10.2527/jas.2014-7848 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 4823-4832 application/pdf American Society of Animal Science Journal of Animal Science, 2014, vol. 92, no. 11, p. 4823-4832.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Admixture
Biodiversity
Criollo pigs
Genetic resources
Genetic structure
Microsatellite
spellingShingle Admixture
Biodiversity
Criollo pigs
Genetic resources
Genetic structure
Microsatellite
Revidatti, María Antonia Susana
Delgado Bermejo, Juan Vicente
Gama, Luis Lavandhino Telo Da
Landi Periati, Vincenzo
Ginja, Catarina
Álvarez, Luz Angela
Vega-Pla, José Luis
Martínez Martínez, Amparo
BioPig Consortium
Genetic characterization of local Criollo pig breeds from the Americas using microsatellite markers
topic_facet Admixture
Biodiversity
Criollo pigs
Genetic resources
Genetic structure
Microsatellite
description Little is known about local Criollo pig genetic resources and relationships among the various populations. In this paper, genetic diversity and relationships among 17 Criollo pig populations from 11 American countries were assessed with 24 microsatellite markers. Heterozygosities, F-statistics, and genetic distances were estimated, and multivariate, genetic structure and admixture analyses were performed. The overall means for genetic variability parameters based on the 24 microsatellite markers were the following: mean number of alleles per locus of 6.25 ± 2.3; effective number of alleles per locus of 3.33 ± 1.56; allelic richness per locus of 4.61 ± 1.37; expected and observed heterozygosity of 0.62 ± 0.04 and 0.57 ± 0.02, respectively; within-population inbreeding coefficient of 0.089; and proportion of genetic variability accounted for by differences among breeds of 0.11 ± 0.01. Genetic differences were not significantly associated with the geographical location to which breeds were assigned or their country of origin. Still, the NeighborNet dendrogram depicted the clustering by geographic origin of several South American breeds (Criollo Boliviano, Criollo of northeastern Argentina wet, and Criollo of northeastern Argentina dry), but some unexpected results were also observed, such as the grouping of breeds from countries as distant as El Salvador, Mexico, Ecuador, and Cuba. The results of genetic structure and admixture analyses indicated that the most likely number of ancestral populations was 11, and most breeds clustered separately when this was the number of predefined populations, with the exception of some closely related breeds that shared the same cluster and others that were admixed. These results indicate that Criollo pigs represent important reservoirs of pig genetic diversity useful for local development as well as for the pig industry.
format Artículo
author Revidatti, María Antonia Susana
Delgado Bermejo, Juan Vicente
Gama, Luis Lavandhino Telo Da
Landi Periati, Vincenzo
Ginja, Catarina
Álvarez, Luz Angela
Vega-Pla, José Luis
Martínez Martínez, Amparo
BioPig Consortium
author_facet Revidatti, María Antonia Susana
Delgado Bermejo, Juan Vicente
Gama, Luis Lavandhino Telo Da
Landi Periati, Vincenzo
Ginja, Catarina
Álvarez, Luz Angela
Vega-Pla, José Luis
Martínez Martínez, Amparo
BioPig Consortium
author_sort Revidatti, María Antonia Susana
title Genetic characterization of local Criollo pig breeds from the Americas using microsatellite markers
title_short Genetic characterization of local Criollo pig breeds from the Americas using microsatellite markers
title_full Genetic characterization of local Criollo pig breeds from the Americas using microsatellite markers
title_fullStr Genetic characterization of local Criollo pig breeds from the Americas using microsatellite markers
title_full_unstemmed Genetic characterization of local Criollo pig breeds from the Americas using microsatellite markers
title_sort genetic characterization of local criollo pig breeds from the americas using microsatellite markers
publisher American Society of Animal Science
publishDate 2024
url http://repositorio.unne.edu.ar/handle/123456789/54236
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