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Title

Data from: Genome-wide SNP data unveils the globalization of domesticated pigs

AuthorsYang, Bin; Cui, Leilei; Pérez-Enciso, Miguel CSIC ORCID; Traspov, Aleksei; Crooijmans, Richard P. M. A.; Zinovieva, Natalia; Schook, Lawrence B.; Archibald, Alan L.; Gatphayak, Kesinee; Knorr, Christophe; Triantafyllidis, Alex; Alexandri, Panoraia; Semiadi, Gono; Hanotte, Olivier; Dias, Deodália; Dovč, Peter; Uimari, Pekka; Iacolina, Laura; Scandura, Massimo; Groenen, Martien A. M.; Huang, Lusheng; Megens, Hendrik-Jan
KeywordsAnthropocene
Holocene
Sus scrofa
Pig
Issue Date23-Aug-2018
PublisherDryad
CitationYang, Bin; Cui, Leilei; Pérez-Enciso, Miguel; Traspov, Aleksei; Crooijmans, Richard P. M. A.; Zinovieva, Natalia; Schook, Lawrence B.; Archibald, Alan L.; Gatphayak, Kesinee; Knorr, Christophe; Triantafyllidis, Alex; Alexandri, Panoraia; Semiadi, Gono; Hanotte, Olivier; Dias, Deodália; Dovč, Peter; Uimari, Pekka; Iacolina, Laura; Scandura, Massimo; Groenen, Martien A. M.; Huang, Lusheng; Megens, Hendrik-Jan; 2018; Data from: Genome-wide SNP data unveils the globalization of domesticated pigs; Dryad; https://doi.org/10.5061/dryad.30tk6
Abstract[Background]: Pigs were domesticated independently in Eastern and Western Eurasia early during the agricultural revolution, and have since been transported and traded across the globe. Here, we present a worldwide survey on 60K genome-wide single nucleotide polymorphism (SNP) data for 2093 pigs, including 1839 domestic pigs representing 122 local and commercial breeds, 215 wild boars, and 39 out-group suids, from Asia, Europe, America, Oceania and Africa. The aim of this study was to infer global patterns in pig domestication and diversity related to demography, migration, and selection.
[Results]: A deep phylogeographic division reflects the dichotomy between early domestication centers. In the core Eastern and Western domestication regions, Chinese pigs show differentiation between breeds due to geographic isolation, whereas this is less pronounced in European pigs. The inferred European origin of pigs in the Americas, Africa, and Australia reflects European expansion during the sixteenth to nineteenth centuries. Human-mediated introgression, which is due, in particular, to importing Chinese pigs into the UK during the eighteenth and nineteenth centuries, played an important role in the formation of modern pig breeds. Inbreeding levels vary markedly between populations, from almost no runs of homozygosity (ROH) in a number of Asian wild boar populations, to up to 20% of the genome covered by ROH in a number of Southern European breeds. Commercial populations show moderate ROH statistics. For domesticated pigs and wild boars in Asia and Europe, we identified highly differentiated loci that include candidate genes related to muscle and body development, central nervous system, reproduction, and energy balance, which are putatively under artificial selection.
[Conclusions]: Key events related to domestication, dispersal, and mixing of pigs from different regions are reflected in the 60K SNP data, including the globalization that has recently become full circle since Chinese pig breeders in the past decades started selecting Western breeds to improve local Chinese pigs. Furthermore, signatures of ongoing and past selection, acting at different times and on different genetic backgrounds, enhance our insight in the mechanism of domestication and selection. The global diversity statistics presented here highlight concerns for maintaining agrodiversity, but also provide a necessary framework for directing genetic conservation.
DescriptionUsage Notes: Description_data_GSE_Global_pigs Table describing the samples. Note that the submitted data includes a few animals that were removed from the paper due to additional constraints applied in the review process. GSE_global_pigs.map PLINK MAP file, describing the SNPs used. GSE_global_pigs.ped Genotype data used in PLINK PED file format.
Publisher version (URL)https://doi.org/10.5061/dryad.30tk6
URIhttp://hdl.handle.net/10261/269720
DOI10.5061/dryad.30tk6
ReferencesYang, Bin; Cui, Leilei; Pérez-Enciso, Miguel; Traspov, Aleksei; Crooijmans, Richard P. M. A.; Zinovieva, Natalia; Schook, Lawrence B.; Archibald, Alan L.; Gatphayak, Kesinee; Knorr, Christophe; Triantafyllidis, Alex; Alexandri, Panoraia; Semiadi, Gono; Hanotte, Olivier; Dias, Deodália; Dovč, Peter; Uimari, Pekka; Iacolina, Laura; Scandura, Massimo; Groenen, Martien A. M.; Huang, Lusheng; Megens, Hendrik-Jan. Genome-wide SNP data unveils the globalization of domesticated pigs. Genetics Selection Evolution 49: 71 (2017). https://doi.org/10.1186/s12711-017-0345-y . http://hdl.handle.net/10261/248866
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