The Genes of Dogs and Humans Overlap: New Research on Common Behavioral Traits.

According to ТСН: A fresh study by British scientists has forced a reevaluation of the old thesis about the 'biological gulf' between humans and dogs. It turns out that one of our favorite pets has much in common with us, beyond mere cohabitation.

The research conducted at the University of Cambridge showed that some genetic variants determining the temperament and reactions of golden retrievers share similarities with human genes that influence intellectual abilities, anxiety levels, and the risk of developing depression.

Research Findings

The team led by neurobiologist Eleanor Raffan published their findings in the journal Proceedings of the National Academy of Sciences, describing them as 'extremely indicative.' The scientist emphasized that the results demonstrate a common origin of behavioral mechanisms in two completely different species, despite the significant evolutionary distance between them.

To arrive at these conclusions, the researchers analyzed genetic sequences from 1300 golden retrievers. Meanwhile, their owners completed questionnaires describing their pets' personalities and habits. This allowed for comparisons of specific genetic variants with behavioral characteristics—from activity to aggression and ease of training.

After obtaining the data on dogs, the scientists applied a similar approach to the human genome. The results were striking—they identified 12 genes that also influence human behavior.

Genetic Overlaps

Among the identified genes was PTPN1, which in retrievers is linked to conflicts with other dogs, while in humans it is associated with cognitive abilities and the likelihood of developing depression. Another gene responsible for fear response in dogs had an analogy with a gene in humans that relates to vulnerability in socially awkward situations.

Co-author of the study, neurobiologist Enoch Alex, notes that the genetic basis of behavioral reactions may make some dogs more sensitive to their environment. If such vulnerability is combined with negative experiences, the animal may begin to exhibit behavior that humans sometimes perceive as 'disobedience,' even though it may simply be stress.

New Approaches to Dog Training

Interestingly, based on the same genetic overlaps, new training methods can be discovered. Researchers found that the gene ROMO1, linked to the ability of golden retrievers to learn, is associated in humans with emotional sensitivity and cognitive flexibility. This leads to the conclusion that training dogs of this breed may be more effective if their emotional state is taken into account, rather than just relying on a 'command-reward' system.

The research team emphasizes that genetics determines only general traits, not precise behavioral patterns. Genes shape tendencies but do not define specific responses in every situation.

As noted by co-author of the study, animal behavior specialist Daniel Mills, our beloved pets share with us not only a residence but also part of the psychological challenges of the modern world. That is why dogs can be valuable models for studying specific mental states in humans related to emotional disorders.

Such studies highlight the importance of understanding the genetic connections between humans and dogs. They could serve as the basis for further scientific developments in dog training and mental health for both dogs and their owners. This opens new horizons for improving mutual understanding between people and their four-legged friends, while also underscoring the role of animals in our lives.