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Updated: Aug 19, 2026

An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations
10:17

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Published on: November 3, 2010

Linkage disequilibrium between the ELA and the A blood group systems in Standardbred horses

E Bailey

    Animal Blood Groups and Biochemical Genetics
    |January 1, 1983
    PubMed

    The linkage group formed by the ELA and A blood group system in horses was studied in American Standardbred horses. The distance between the ELA locus and the A blood group locus was measured as 1.61 centimorgans, observing only the haplotypes contributed by the sires. Strong linkage disequilibrium was found in pacing Standardbred horses for ELA-W1 with Aa, ELA-W5 with Ab and ELA-W10 with Ab. Linkage disequilibrium was apparent at both the population and family level. Among trotting Standardbred horses, linkage disequilibrium was found for ELA-W1 with Aa and for ELA-W10 with Ab. It was not possible to investigate linkage relationships in Thoroughbred horses because of the high frequency of Aa and low frequency of other A system markers.

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