Turnaround time
10 workdays
48.4
40
DNA test for the RYR1 c.7360C>G variant that causes susceptibility to malignant hyperthermia in horses.
Overview
This genetic test detects the RYR1 variant c.7360C>G for malignant hyperthermia, abbreviated MH. Malignant hyperthermia is an inherited susceptibility in which muscle cells release too much calcium after specific triggers.
In susceptible horses, an episode can be triggered by anesthesia, stress, exercise or other challenging conditions. Episodes can progress rapidly with muscle rigidity, high body temperature, fast heart rate, breathing problems, acidosis and muscle breakdown.
The result is valuable for breeding selection and for identifying horses whose anesthesia and stress management should be planned with extra care.
Included subanalyses
This analysis includes the following subanalysis:
Allele combinations & result interpretations
Below, for each tested locus, you will find the possible allele combinations that may be reported within this analysis, together with a brief explanation of their genetic meaning. The interpretation of possible interactions between different loci is included in the report, but is not shown here in full because that would lead to too many combinations on this page. The final expression may also depend on other genes and their interaction.
Genotype / allele combination: No risk variant detected (N/N)
The tested MH variant is not detected. This horse will not pass this variant on and has no increased MH susceptibility from this RYR1 variant.
Genotype / allele combination: Risk / one copy (N/MH)
The horse has one copy of the MH allele. One copy causes MH susceptibility; the horse can pass the allele to about half of its offspring.
Genotype / allele combination: Risk / two copies (MH/MH)
The horse has two copies of the MH allele. This genotype causes MH susceptibility and the horse will pass the MH allele to all offspring.
Sampling and submission guidelines







References