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Home / Equine Research Bank / Anim Genet / Mitochondrial DNA sequence diversity in extant Irish horse p...
Animal genetics2006; 37(5); 498-502; doi: 10.1111/j.1365-2052.2006.01506.x

Mitochondrial DNA sequence diversity in extant Irish horse populations and in ancient horses.

Abstract: Equine mitochondrial DNA sequence variation was investigated in three indigenous Irish horse populations (Irish Draught Horse, Kerry Bog Pony and Connemara Pony) and, for context, in 69 other horse populations. There was no evidence of Irish Draught Horse or Connemara Pony sequence clustering, although the majority of Irish Draught Horse sequences (47%) were assigned to haplogroup D. Conversely, 31% of the Kerry Bog Pony sequences were assigned to the rare haplogroup E. In addition to the extant population analyses, ancient DNA sequences were generated from three out of four Irish archaeological specimens, all of which were assigned to haplogroup A.
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Publication Date: 2006-09-19 PubMed ID: 16978181DOI: 10.1111/j.1365-2052.2006.01506.xGoogle 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 research article investigates the variation in mitochondrial DNA sequences in modern and ancient horse populations from Ireland. The authors explore whether specific genetic markers, called haplogroups, are characteristic of certain breeds and how these compare to genetic information from ancient specimens.

Investigation of Modern Irish Horse Populations

  • The study looked into the mitochondrial DNA sequence variation in three indigenous Irish horse populations: Irish Draught Horse, Kerry Bog Pony, and Connemara Pony. Mitochondrial DNA is inherited from the female parent and can provide information about the maternal lineage of an individual or population.
  • The genetic sequences of these Irish horse populations were then compared to those of 69 other horse populations to provide a broader context for the findings.
  • No specific clustering, which would imply shared maternal ancestors, was identified in the sequences from the Irish Draught Horse or Connemara Pony populations.
  • However, a significant proportion (47%) of the Irish Draught Horse genetic sequences were found to belong to haplogroup D, a classification that groups individuals sharing a common matrilineal ancestor.

Kerry Bog Pony Findings

  • On the other hand, 31% of the Kerry Bog Pony sequences were assigned to haplogroup E. This is notable as haplogroup E is considered rare.
  • The prevalence of this rare haplogroup within the Kerry Bog Pony population may indicate a unique matrilineal lineage or reveal traces of ancient maternal ancestors still present in this breed.

Ancient DNA Analysis

  • Furthermore, the research also involved the analysis of ancient DNA sequences. These sequences were obtained from four Irish archaeological horse specimens, with successful results obtained from three of them.
  • All of these ancient sequences were assigned to haplogroup A, providing insight into the maternal lineage of ancient Irish horses.
  • Such findings may offer information on the history of horse breeding in Ireland and how it has influenced current horse populations.

This study contributes to our understanding of horse genetics and breeding history in Ireland, potentially informing conservation efforts for indigenous breeds and opening avenues for further research into equine genetics.

Cite This Article

APA
McGahern AM, Edwards CJ, Bower MA, Heffernan A, Park SD, Brophy PO, Bradley DG, MacHugh DE, Hill EW. (2006). Mitochondrial DNA sequence diversity in extant Irish horse populations and in ancient horses. Anim Genet, 37(5), 498-502. https://doi.org/10.1111/j.1365-2052.2006.01506.x

Publication

Animal genetics
ISSN: 0268-9146
NlmUniqueID: 8605704
Country: England
Language: English
Volume: 37
Issue: 5
Pages: 498-502

Researcher Affiliations

McGahern, A M
  • Animal Genomics Laboratory, School of Agriculture, Food Science and Veterinary Medicine, College of Life Sciences, University College Dublin, Belfield, Dublin 4, Ireland.
Edwards, C J
    Bower, M A
      Heffernan, A
        Park, S D E
          Brophy, P O
            Bradley, D G
              MacHugh, D E
                Hill, E W

                  MeSH Terms

                  • Animals
                  • DNA, Mitochondrial / chemistry
                  • Fossils
                  • Genetic Variation
                  • Haplotypes
                  • Horses / genetics
                  • Ireland
                  • Phylogeny
                  • Sequence Analysis, DNA

                  Citations

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