Polo: Genetically Edited Horses
By Prof Dr Ian Blackshaw
It has been reported that the world's first genetically edited polo horses have been born in Argentina in late 2024.
They were created by the biotech firm Kheiron S.A., using the CRISPR-Cas9 gene-editing technique, whereby scientists modified the DNA from a champion mare, named Polo Pureza, to increase explosive speed, which is desired for the fast-paced sport of polo. The CRISPR-Cas9 technique was employed to make precise edits to the horse's genome.
The goal was to enhance the performance of the horses whilst maintaining their natural agility and temperament.
These horses are considered in Argentina to be natural, and not genetically modified organisms (GMOs), as they have received edited natural gene sequences rather than foreign DNA, a process which is likened to natural breeding but is completed more quickly and precisely.
The edited horses are expected to inherit Polo Pureza's agility and other positive qualities, but also possess enhanced explosive speed, making them superior for polo.
It is claimed that these edited horses comply with current Argentine regulations and do not fall within genetic doping or GMO classifications.
However, this development has given rise to a debate in the polo world, which is questioning whether it is a legitimate scientific advancement or a form of artificial manipulation similar to performance-enhancing drugs. In other words, whether gene editing amounts to a form of cheating.
There are also wider implications, as this technology is intended to be used in other equestrian sports, such as show jumping and racing.
Prof Dr Ian Blackshaw may be contacted by e-mail at ‘
