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Title

A High Throughput Genotyping Approach Reveals Distinctive Autosomal Genetic Signatures for European and Near Eastern Wild Boar

AuthorsManunza, Arianna; Zidi, A.; Ramírez, Óscar ; Castelló, Anna ; Amills, Marcel
Issue Date27-Feb-2013
PublisherPublic Library of Science
CitationPLoS ONE 8(2): e55891 (2013)
AbstractThe lack of a Near Eastern genetic signature in modern European porcine breeds indicates that, although domestic pigs from the Fertile Crescent entered Europe during the Neolithic, they were completely replaced by their European counterparts in a short window of time. Whilst the absence of such genetic signature has been convincingly demonstrated at the mitochondrial level, variation at the autosomal genomes of European and Near Eastern Sus scrofa has not been compared yet. Herewith, we have explored the genetic relationships among 43 wild boar from Europe (N = 21), Near East (N = 19) and Korea (N = 3), and 40 Iberian (N = 16), Canarian (N = 4) and Mangalitza (N = 20) pigs by using a high throughput SNP genotyping platform. After data filtering, 37,167 autosomal SNPs were used to perform population genetics analyses. A multidimensional scaling plot based on genome-wide identity-by-state pairwise distances inferred with PLINK showed that Near Eastern and European wild boar populations are genetically differentiated. Maximum likelihood trees built with TreeMix supported this conclusion i.e. an early population split between Near Eastern and European Sus scrofa was observed. Moreover, analysis of the data with Structure evidenced that the sampled Iberian, Canarian and Mangalitza pigs did not carry any autosomal signature compatible with a Near Eastern ancestry, a finding that agrees well with previous mitochondrial studies. © 2013 Manunza et al.
DescriptionManunza, Arianna et al.
Publisher version (URL)http://dx.doi.org/10.1371/journal.pone.0055891
URIhttp://hdl.handle.net/10261/86988
DOI10.1371/journal.pone.0055891
Identifiersdoi: 10.1371/journal.pone.0055891
issn: 1932-6203
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