The Royal Kennel Club and the Roslin Institute are to collaborate on a research project, as they seek to better understand the genetic diversity of the Sussex spaniel.
The institutions will work alongside the Sussex spaniel community, as represented by the Sussex Spaniel Association, to analyse the DNA of approximately 125-150 Sussex spaniels.
It is hoped that this sample size will represent as much of the accessible living RKC-registered population as possible. The collected genetic information will be combined with the Royal Kennel Club’s own pedigree data.
The Sussex spaniel community is invited to participate in on-site DNA sampling at the Sussex Spaniel Championship in Coventry on 26 September. An option to participate via post will be shared with Sussex spaniel owners at a later date.
The data will be used to produce an evidence-based population management strategy to protect the species.
The Sussex spaniel is considered a Vulnerable Native Breed by Royal Kennel Club. This means that it records fewer than 300 puppy registrations of this breed each year.
In 2025, just 15 puppies were registered – down from 24 registrations the previous year. The Royal Kennel Club describes it as ‘one of Britain’s most vulnerable native breeds’.
The new population strategy is set to be developed using ‘the most advanced tools available’, considering approaches that may be applicable to other breeds and projects. Researchers hope the strategy will act as proof of concept for using DNA information alongside pedigree data.
Charlotte McNamara, chief canine wellbeing and engagement officer at the Royal Kennel Club, said: "The RKC has a long history of maintaining pedigree records, providing generations of information on how dogs are related and creating a unique resource for understanding and managing genetic diversity.
“Advances in genetic technology now give us an exciting opportunity to build on this important benefit of RKC registration, and we are delighted to be taking this next step alongside the world-leading scientists at the Roslin Institute.”
Dr Pau Navarro, project lead scientist at the Roslin Institute, said: “We are pleased to be working with the Royal Kennel Club, with support from breeders and owners, to understand the genetic diversity of this pedigree breed. This will help develop an evidence-based approach to manage a population of healthy dogs.
“Our insights will also be valuable in supporting rare breeds across many species of animals.”
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