Do Thoroughbred Horses have a Speed Gene?

Scientists have traced the origin of the “speed gene” back to a British Mare 300 years ago and linked it to modern racehorses according to an article written by University College Dublin which credits findings published in the scientific journal Nature Communications.

The study used DNA collected from close to 600 horses, from 22 breeds, 12 lengendary thoroughbred stallions and 330 elite modern thoroughbreds from 3 continents.

Their article also provides some interesting facts about the evolution of hose racing. Will knowledge of a speed gene change convenional beliefs in breeding?  Time as always will tell.