Genetic variability and history of a native Finnish horse breed

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dc.contributor.author Qvist, Laura
dc.contributor.author Niskanen, Markku
dc.contributor.author Mannermaa, Kristiina
dc.contributor.author Wutke, Saskia
dc.contributor.author Aspi, Jouni
dc.date.accessioned 2019-08-19T11:34:01Z
dc.date.available 2019-08-19T11:34:01Z
dc.date.issued 2019-07-01
dc.identifier.citation Qvist , L , Niskanen , M , Mannermaa , K , Wutke , S & Aspi , J 2019 , ' Genetic variability and history of a native Finnish horse breed ' , Genetics Selection Evolution , vol. 51 , no. 35 , 35 . https://doi.org/10.1186/s12711-019-0480-8
dc.identifier.other PURE: 125511597
dc.identifier.other PURE UUID: 0de2ac82-3746-49d1-8a85-e88076874cc5
dc.identifier.other WOS: 000474359900001
dc.identifier.other ORCID: /0000-0002-8510-1120/work/60867037
dc.identifier.uri http://hdl.handle.net/10138/304751
dc.description.abstract Background: The Finnhorse was established as a breed more than 110 years ago by combining local Finnish landraces. Since its foundation, the breed has experienced both strong directional selection, especially for size and colour, and severe population bottlenecks that are connected with its initial foundation and subsequent changes in agricultural and forestry practices. Here, we used sequences of the mitochondrial control region and genomic single nucleotide polymorphisms (SNPs) to estimate the genetic diversity and differentiation of the four Finnhorse breeding sections: trotters, pony-sized horses, draught horses and riding horses. Furthermore, we estimated inbreeding and effective population sizes over time to infer the history of this breed. Results: We found a high level of mitochondrial genetic variation and identified 16 of the 18 haplogroups described in present-day horses. Interestingly, one of these detected haplogroups was previously reported only in the Przewalski’s horse. Female effective population sizes were in the thousands, but declines were evident at the times when the breed and its breeding sections were founded. By contrast, nuclear variation and effective population sizes were small (approximately 50). Nevertheless, inbreeding in Finnhorses was lower than in many other horse breeds. Based on nuclear SNP data, genetic differentiation among the four breeding sections was strongest between the draught horses and the three other sections (FST=0.007–0.018), whereas based on mitochondrial DNA data, it was strongest between the trotters and the pony-sized and riding horses (ΦST= 0.054–0.068). Conclusions: The existence of a Przewalski’s horse haplogroup in the Finnhorse provides new insights into the domestication of the horse, and this finding supports previous suggestions of a close relationship between the Finnhorse and eastern primitive breeds. The high level of mitochondrial DNA variation in the Finnhorse supports its domestication from a large number of mares but also reflects that its founding depended on many local landraces. Although inbreeding in Finnhorses was lower than in many other horse breeds, the small nuclear effective popula- tion sizes of each of its breeding sections can be considered as a warning sign, which warrants changes in breeding practices. fi
dc.format.extent 14
dc.language.iso eng
dc.relation.ispartof Genetics Selection Evolution
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 1184 Genetics, developmental biology, physiology
dc.subject MITOCHONDRIAL-DNA
dc.subject PROGRAM
dc.subject DOMESTICATION
dc.subject SOFTWARE
dc.subject ORIGINS
dc.subject GENOMES
dc.subject NUMBER
dc.title Genetic variability and history of a native Finnish horse breed en
dc.type Article
dc.contributor.organization Department of Cultures
dc.contributor.organization Helsinki Institute of Sustainability Science (HELSUS)
dc.contributor.organization University Management
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1186/s12711-019-0480-8
dc.relation.issn 0999-193X
dc.rights.accesslevel openAccess
dc.type.version publishedVersion
dc.identifier.url https://rdcu.be/bIjaV

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