Characterization of the genetic diversity, structure, and admixture of 7 Chilean chicken breeds

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datacite.alternateIdentifier.citationPoultry Science, Vol.103, N°2, 103238-103238, 2024.
datacite.alternateIdentifier.doi10.1016/j.psj.2023.103238
datacite.alternateIdentifier.issn0032-5791
datacite.creatorde la Parra, Mario Diaz Matus
datacite.creatorInostroza, Karla
datacite.creatorAlcalde, Jose Antonio
datacite.creatorLarama, Giovanni
datacite.creatorBravo, Silvana
datacite.date2024
datacite.rightsAcceso abierto
datacite.subjectAve Mapuche
datacite.subjectDiversidad Genética
datacite.subjectRaza de Pollo
datacite.subjectRecurso Zoogenético
datacite.subject.englishMapuche fowl
datacite.subject.englishgenetic diversity
datacite.subject.englishchicken breed
datacite.subject.englishzoogenetic resource
datacite.titleCharacterization of the genetic diversity, structure, and admixture of 7 Chilean chicken breeds
dc.date.accessioned5/27/24 14:27
dc.date.available5/27/24 14:27
dc.description.abstractThe Mapuche fowl is an autochthonous breed raised in Chile and represents an important zooge-netic resource for the local economy. This study aimed at investigating the genetic diversity, relationship and population structure of 96 local Chilean chickens derived from 3 ecotype of Mapuche fowl (Kollonka, Ketro, and Kollonka de aretes), 2 ecotype Chilean (Trintre, Cogote pelado) and 2 breeds (Light Brahma and Barred Ply-mouth Rock) using 12 microsatellite markers. In total, 113 alleles were detected in all populations, with a mean of 7.6 alleles per population. In all population chicken breeds, the observed and expected heterozygosity ranged from 0.91 to 0.98 and from 0.69 to 0.79. Further-more, all populations showed significant deviations from Hardy-Weinberg expectations. Across each population, the global heterozygosity deficit (FIT) was -0.174, pop-ulation differentiation index (FST) was 0.073, and the global inbreeding of individuals within breed (FIS) was -0.267. The phylogenetic relationships of chickens were examined using neighbor-joining trees constructed at the level of population. The highest Nei's standard genetic distance value of 0.559 was observed between Barred Plymouth Rock and Light Brahma, whereas the minimum value (0.099) was found between Kollonka and Trintre. The neighbor-joining tree constructed at population level revealed 2 main clusters, with Light Brahma, Barred Plymouth Rock, Ketro and Kollonka de aretes in 1 cluster, and Kollonka, Trintre and Cogote pelado breeds in the second cluster. Based on the results of the STRUCTURE analysis, the most likely number of clustering of the population evaluated was at K = 3, with Light Brahma and Barred Plymouth Rock breeds forming their own distinct clusters, while Kollonka, Ketro, Kollonka de aretes, Trintre and Cogote pelado breeds clustered together. This study represents the first report of genetic diversity in these populations in Chile. These results can be used as baseline genetic information for genetic conservation program, for instance, to control inbreeding and to implement further genetic studies in local Chilean chickens.
dc.description.ia_keywordgenetic, population, kollonka, breeds, chilean, trintre, light
dc.formatPDF
dc.identifier.issn0032-5791
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/5825
dc.language.isoen
dc.publisherElsevier
dc.relationinstname: ANID
dc.relationreponame: Repositorio Digital RI2.0
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.sourcePoultry Science
dc.subject.ia_odsODS 17: Alianzas para lograr los objetivos
dc.subject.ia_oecd1nCiencias Naturales
dc.subject.ia_oecd2nCiencias Biológicas
dc.subject.ia_oecd3nBiología General
dc.type.driverinfo:eu-repo/semantics/article
dc.type.driverhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.type.openaireinfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
oaire.citationEdition2024
oaire.citationEndPage103238
oaire.citationIssue2
oaire.citationStartPage103238
oaire.citationTitlePoultry Science
oaire.citationVolume103
oaire.fundingReferenceANID 21212315 (Beca Doctorado)
oaire.licenseConditionObra bajo licencia Creative Commons Atribución-No Comercial-Sin Derivadas 4.0 Internacional
oaire.licenseCondition.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
oaire.resourceTypeArtículo
oaire.resourceType.enArticle
uct.catalogadorjvu
uct.comunidadRecursos Naturalesen_US
uct.departamentoDepartamento de Ciencias Agropecuarias y Acuícolas
uct.facultadFacultad de Recursos Naturales
uct.indizacionScience Citation Index Expanded - SCIE
uct.indizacionSCOPUS
uct.indizacionWOS
uct.indizacionDOAJ
uct.indizacionPubMed
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