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Home / Equine Research Bank / Science / Widespread origins of domestic horse lineages.
Science (New York, N.Y.)2001; 291(5503); 474-477; doi: 10.1126/science.291.5503.474

Widespread origins of domestic horse lineages.

Abstract: Domestication entails control of wild species and is generally regarded as a complex process confined to a restricted area and culture. Previous DNA sequence analyses of several domestic species have suggested only a limited number of origination events. We analyzed mitochondrial DNA (mtDNA) control region sequences of 191 domestic horses and found a high diversity of matrilines. Sequence analysis of equids from archaeological sites and late Pleistocene deposits showed that this diversity was not due to an accelerated mutation rate or an ancient domestication event. Consequently, high mtDNA sequence diversity of horses implies an unprecedented and widespread integration of matrilines and an extensive utilization and taming of wild horses. However, genetic variation at nuclear markers is partitioned among horse breeds and may reflect sex-biased dispersal and breeding.
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Publication Date: 2001-02-13 PubMed ID: 11161199DOI: 10.1126/science.291.5503.474Google Scholar: Lookup
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  • Comparative Study
  • Journal Article
  • Research Support
  • Non-U.S. Gov't

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study underlines the diverse origins of domestic horse lineages, overarching the old belief of limited origination events. The study posits that the vast diversity of matrilines came from a broad and comprehensive integration of them, along with a widespread taming and use of wild horses.

Analysis of Mitochondrial DNA

  • The researchers carried out an analysis on the mitochondrial DNA (mtDNA) control region sequences of 191 domestic horses. They discovered a high diversity of matrilines, indicating that the origins of domestic horse lineages were not limited to a few events or locations, but were more widespread and complex.

Exploration of Equids from Archaeological Sites

  • This study also involved the investigation of equids, which are horse-like animals, from archaeological sites and late Pleistocene deposits. The researchers aimed to compare these equids’ DNA sequences with the mtDNA sequences of modern domestic horses to determine the diversity.
  • The outcomes of the analysis demonstrated that the high diversity found was not due to an accelerated mutation rate or an ancient domestication event, thus debunking the possibility of these factors contributing to lineage diversity.

Implication of mtDNA Sequence Diversity

  • The study’s results suggest that the high mtDNA sequence diversity among horses implies an unprecedented and widespread integration of matrilines. This signifies that domestication must have involved comprehensive incorporation of different matrilines.
  • Evidence also points to an extensive utilization and taming of wild horses, implying that the domestication process was not confined to a specific area or a small number of wild horses but was more broad-based.

Consideration of Genetic Variation at Nuclear Markers

  • The paper also mentions that genetic variation at nuclear markers is partitioned among horse breeds. This could indicate sex-biased dispersal and selective breeding, suggesting that while the origins were diverse, controlled breeding practices also played a significant role in shaping the genetic diversity of domestic horse lineages over time.

Cite This Article

APA
Vilà C, Leonard JA, Gotherstrom A, Marklund S, Sandberg K, Liden K, Wayne RK, Ellegren H. (2001). Widespread origins of domestic horse lineages. Science, 291(5503), 474-477. https://doi.org/10.1126/science.291.5503.474

Publication

Science (New York, N.Y.)
ISSN: 0036-8075
NlmUniqueID: 0404511
Country: United States
Language: English
Volume: 291
Issue: 5503
Pages: 474-477

Researcher Affiliations

Vilà, C
  • Department of Evolutionary Biology, Uppsala University, Norbyvägen 18D, S-75236 Uppsala, Sweden. carles.vila@ebc.uu.se
Leonard, J A
    Gotherstrom, A
      Marklund, S
        Sandberg, K
          Liden, K
            Wayne, R K
              Ellegren, H

                MeSH Terms

                • Alleles
                • Animal Husbandry
                • Animals
                • Animals, Domestic / genetics
                • Animals, Wild / genetics
                • Biological Evolution
                • Breeding
                • DNA, Mitochondrial / genetics
                • Female
                • Fossils
                • Genetic Variation
                • Genetics, Population
                • Haplotypes
                • Horses / genetics
                • Male
                • Microsatellite Repeats
                • Pedigree

                Citations

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