The Genomic Makeup of Nine Horse Populations Sampled in the Netherlands.
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
This research is an exploration into the genomic makeup of nine horse populations in the Netherlands, diving into the genetic diversity and relationships within these populations to construct effective conservation and breeding strategies.
Research Objective and Methodology
The study aimed to increase understanding of the evolutionary history of horse populations in the Netherlands, and provide information to optimize their conservation or development. Nine horse populations were analyzed, including the Belgian draft horse, Friesian horse, Shetland pony, Icelandic horse, Gelder horse, Groninger horse, harness horse, KWPN sport horse, and the Lipizzaner horse population.
The researchers examined genotype data from 184 horses, calculating numerous parameters such as runs of homozygosity (ROH) and F values to understand genetic diversity and relationships within and among the populations.
Findings
- The results supported the known historical development of these horse populations, as well as past and current breeding practices.
- In general, populations that permitted gene flow showed less inbreeding and homozygosity, implying a more diverse genetic profile.
- Recent bottlenecks, possibly due to high selective pressure, led to a significant contribution of long ROHs to inbreeding.
Implications and Recommendations
The research has significant implications for conservation biology and horse breeding strategies particularly among relatively small, inbred populations.
- Maintaining genetic diversity through carefully planned breeding practices is important for the healthy continuation of these horse populations, several of which are already experiencing issues associated with inbreeding.
- The findings provide breeders with a detailed picture of the genetic diversity and relationships within and among these populations, enabling them to make informed decisions regarding breeding and conservation practices.
- The researchers hint at the need of avoiding too much selective pressure that could lead to bottlenecks and increased inbreeding, detrimentally affecting the genetic health of the horse populations.
Cite This Article
Publication
Researcher Affiliations
- Centre for Genetic Resources, the Netherlands (CGN), Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands. anouk.schurink@wur.nl.
- Animal Breeding and Genomics, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands. anouk.schurink@wur.nl.
- Animal Breeding and Genomics, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands. merina44_sta@yahoo.com.
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, P.O. Box 7023, 75007 Uppsala, Sweden. merina44_sta@yahoo.com.
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, P.O. Box 7023, 75007 Uppsala, Sweden. Susanne.Eriksson@slu.se.
- Animal Breeding and Genomics, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands. mirte.bosse@wur.nl.
- Animal Breeding and Genomics, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands. henk.bovenhuis@wur.nl.
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 112-114, 3584 CM Utrecht, The Netherlands. W.Back@uu.nl.
- Department of Surgery and Anaesthesiology of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium. W.Back@uu.nl.
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, P.O. Box 7023, 75007 Uppsala, Sweden. anna.johansson@slu.se.
- Animal Breeding and Genomics, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands. bart.ducro@wur.nl.
MeSH Terms
- Animals
- Breeding
- Genome / genetics
- Genomics
- Genotype
- Horses / genetics
- Humans
- Inbreeding
- Netherlands
- Polymorphism, Single Nucleotide / genetics
Conflict of Interest Statement
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