Tuesday, November 28, 2023

Genetics and Dog Breeds


    Humans have placed artificial selective pressures on dogs for centuries. People have bred them for their temperament, size, and other physical features. These selections have made the dog breeds we know today. I chose an article written by Jill Adams that was published in Nature in 2008. The article highlights a variety of studies performed by researchers about the genetic factors involved in dog breeding. 

    Adams delves into the possible deleterious effects of dog breeding for specific physical characteristics. I found this to be particularly interesting because many brachycephalic dog breeds experience difficulties breathing. While the breathing difficulty is not a deleterious genetic defect, Adams mentions that some of the effects may not be known and that some have affected the mitochondrial genome in many dog breeds. 

1 comment:

  1. I found your blog post very interesting because in most cases, breeders focus just on obtaining desirable traits and don't pay attention to any harm on the offspring. Many individuals also adopt pets of different breeds and it is very important for them to understand if their dog's breed may cause them to be predisposed to certain condition. Overall, your article was very insightful and relevant to modern society.