Troubled Breathing Dogs

https://www.sciencenews.org/article/some-dog-breeds-may-have-trouble-breathing-because-mutated-gene
https://www.smithsonianmag.com/smart-news/breathing-problems-smushy-faced-dogs-might-have-genetic-component-180972215/

The gene ADAMTS3 has been associated with the swelling of the airways inside dogs noses. This has been identified as a respiratory tract disorder and share the same genes between different breeds of dogs. Many of them had copies of this gene leading to a worse performance of breathing than other dogs with the lack of this mutated gene. The mutation affects the swelling in the nostrils as well as around the dogs lungs. The dogs thought to have these breathing problems are the dogs with smooched faces. This is now looked at to not be the only reason these dogs are having the effect of breathing problems. The breed “Norwich terriers” have breathing problems but their snouts are normal and in no way an effect of this problem. Jeffery Schoenebeck stated, “This is the first evidence to show that its not just all about skull size”. Bulldogs have this problem as well with having a hard time to breath. I think this is great research because this can lead dog breeders to breed healthier puppies and make them have a better life. Breeders can use a genetic test to keep the dogs with the ADAMTS3 gene from reproducing and passing it along to more dogs. Many of these dogs with their breathing problems come to a pretty high cost due to the treatments they will eventually need at some time in their lives. Genetic tests for your own dogs might come into play and be the next big thing!

Norwich Terriers

https://www.sciencenews.org/article/some-dog-breeds-may-have-trouble-breathing-because-mutated-gene

https://www.bbc.com/news/uk-scotland-edinburgh-east-fife-48294681

Norwich Terriers are a breed of dog that struggles with wheezing just as Bulldogs and French dogs do. However, unlike bulldogs and French dogs, this struggle is not due to the shape of their snouts. Scientists have established that this wheezing could be due to the wayward gene. This was established by contracting DNA from 401 Norwich Terriers. This research revealed that those struggling with a respiratory tract disorder shared the same variant of gene ADAMTS3. Which is otherwise known as the wayward gene. This gene is associated with swelling around airways and roughly ⅓ of the dogs that had two copies of the mutated gene ADAMTS3. Furthermore, those who had two copies of the mutated gene scored significantly worse on their airway-functioning test than those who only had one copy. This is the first piece of evidence that suggests that it's not just skull shape. This research could ultimately help dog breeders breed healthier puppies. Breeders could use the test to keep dogs that have the genetic variant and keep from reproducing and passing the mutation along. I thought this was interesting because I would have thought it would have been more likely to be linked to a gene that expressed a distinctive skull shape rather than a gene associated with swelling of the airways. Furthermore, I’m shocked that this gene has not been selected out of the population considering breathing is so vital.