The cosmopolitan maternal heritage of the thoroughbred racehorse breed shows a significant contribution from british and irish native mares

M. A. Bower, M. G. Campana, M. Whitten, C. J. Edwards, H. Jones, E. Barrett, R. Cassidy, R. E.R. Nisbet, E. W. Hill, C. J. Howe, M. Binns

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The paternal origins of Thoroughbred racehorses trace back to a handful of Middle Eastern stallions, imported to the British Isles during the seventeenth century. Yet, few details of the foundation mares were recorded, in many cases not even their names (several different maternal lineages trace back to 'A Royal Mare'). This has fuelled intense speculation over their origins. We examined mitochondrial DNA from 1929 horses to determine the origin of Thoroughbred foundation mares. There is no evidence to support exclusive Arab maternal origins as some historical records have suggested, or a significant importation of Oriental mares (the term used in historic records to refer to Middle East and western Asian breeds including Arab, Akhal-Teke, Barb and Caspian). Instead, we show that Thoroughbred foundation mares had a cosmopolitan European heritage with a far greater contribution from British and Irish Native mares than previously recognized.

Original languageEnglish
Pages (from-to)316-320
Number of pages5
JournalBiology Letters
Volume7
Issue number2
Early online date6 Oct 2010
DOIs
Publication statusPublished - 23 Apr 2011
Externally publishedYes

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