Researchers at the National Institutes of Health have identified genes associated with the behavior of certain breeds of dogs. their jobs published in Cell magazine.
Kennel clubs often categorize dog breeds according to the job they are best suited for. To find genes associated with behaviors that make dogs perform well in certain tasks, the researchers analyzed DNA samples from more than 200 dog breeds, as well as nearly 50,000 questionnaires filled out by pet owners.
As a result, scientists found 10 genetic variations corresponding to 10 breeds of dogs – groups of breeds that are similar in structure, behavior, adaptability and working qualities.
For example, herding dogs express activity in genes important for the development of brain regions involved in social cognition and learned fear responses. Scientists have discovered the EPHA5 gene in sheepdogs, which is associated with attention deficit hyperactivity disorder (ADHD) and anxiety behavior in other mammals. These results provide an explanation for the high energy requirements of shepherd dogs and their excessive concentration during task performance.
Source: Gazeta
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