MySheen

There are many differences in dna among different kinds of dogs.

Published: 2024-11-21 Author: mysheen
Last Updated: 2024/11/21, Researchers in the first issue of the journal Science point out that genetic differences between different breeds of dogs are so obvious that they can even judge a dog's species by its DNA alone. This phenomenon is related to the fact that humans have controlled the inbred breeding of dogs over the past 300 years to acquire the characteristics of different dogs. This shows that human beings can indeed play an important role in the field of species evolution. While analyzing the DNA genetic code of dogs in an attempt to further understand the genetic factors of human diseases, the researchers were surprised to find that only in the past few hundred years, no.

Researchers in the first issue of the journal Science point out that genetic differences between different breeds of dogs are so obvious that they can even judge a dog's species by its DNA alone. This phenomenon is related to the fact that humans have controlled the inbred breeding of dogs over the past 300 years to acquire the characteristics of different dogs. This shows that human beings can indeed play an important role in the field of species evolution.

In an analysis of the DNA genetic code of dogs in an attempt to further understand the genetic factors of human disease, researchers were surprised to find that genetic differences between different breeds of dogs have reached 30 per cent in just the past few hundred years. Far greater than the differences between different races of human beings.

Many dogs can be divided into 4 main categories and 85 breeds according to their genetic characteristics. These include ancient breeds such as huskies and Peking pugs, which may be closest to their wolf ancestors; Labrador hounds; large domesticated dogs such as Rottweilers; shepherds, guard dogs and other herding dogs.

The researchers say most varieties have traces of human creation. Although all dogs belong to the same species, there are great differences in appearance and behavior habits among different breeds of dogs, such as weight, size, shape of head, fur, ear shape, behavior and disease. There are so many small differences between different species within a single species that do not exist in other species. In fact, there are more than 400 species of dogs in the world, each of which is an independent breeding population.

Over the past 300 years, humans have concentrated and systematically bred dogs to get the characteristics they want. The production of such a large number of small genetic differences in such a short period of time is entirely the result of human action.

 
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