What does this mean for new research and the future?

It is not a breed that necessarily indicates the character of the dog. To formalize what many experts have been repeating for some time, e.g. Each dog is an individual Personality, needs, aspirations and motivations that make it unique, a recent study published in the journal ScienceLed by scientists from Glasgow University, Princeton University, Sokoin University of Agriculture and the University of Warwick.

Kathleen Morrill’s team has seen data on hundreds of dogs, moving forward A genomic analysis And to compare it with the responses of reference people when compiling a series of surveys. Outcome question Mostly stereotypes about race Which has taken root over time and which still influences one’s spouse choice. And also the laws, since some local regulations identify certain breeds as endangered and insurance companies offer higher premiums for those who believe in dogs. Varieties are considered invasive.

This new study is extremely important in terms of rethinking and looking through different eyes The role of humans in the evolution of dogs was and still is. Large-sample genomic analysis performed by scientists indicates this Race and behavior are not so related You might think, and that selection affects primarily Aesthetic features (Sometimes with extremely detrimental consequences, as in the case of brachycephalic dogs).

If it is true that humans and dogs have been companions for millennia, then it is equally true that before the Victorian era, dogs were originally chosen to perform tasks of a practical and functional nature, e.g. Hunting, sailing and guarding. People have started to replace it since the 1800s Your selection is refinedMainly For aesthetic reasons And “purity”, assuming – incorrectly, this study seems to suggest – that the nation could be blamed. Character, mood and behavioral tendencies Based on the presumed function of the ancestral population. And it is also speculated that the heredity of individual dogs is predictable in nature and behavior.

German Shepherd dog
In the picture: German Shepherd

The team of researchers wanted to investigate these hypotheses more deeply (converted to certainty, and BusinessOver time) studies the genome 2,155 dogsReferences to purebred and Mestizo dogs combine with the responses to 18,385 questionnaires on physical and behavioral characteristics submitted to humans, all collected. Civil Science Darwin’s Ark. Aggregates information, Only 11 genetic loci were strongly associated with the behavior, But none of these can be closely associated with any nation. The only exception seems to have been recorded in the face of obedience to human commands and instructions, but research has shown that Breeds affect only 9% of a dog’s moodAnd in no case was it possible to link a particular behavior to a single race.

“Modern breeds of domestic dogs are only 160 years old, and the results of a selection conducted to obtain specific aesthetic traits – underlined by researchers – to study how genetics are compatible with the characteristics of the breed. The data, including surveys conducted among owners, were used to map genes associated with behavioral and physical characteristics, although many physical characteristics were associated with races. Behavior between individual dogs was much more variable. In general, the inheritance of physical traits was a major predictor of reproduction, but it was not a predictor of the lineage of Mestizos. Among the behavioral characteristics, The ability to follow human instructions has been found to be the most inherited By breed, but still significantly varied between individual dogs. ‘

Conclusion, for scientists, that race This is not a reliable way to predict behavior Single person. Therefore, the stereotypes and superstitions that were always associated with certain species, such as the faithful Golden Retriever, the aggressive Pitbull, the obedient German Shepherd, are lost. One of the links, breed and temperament, which “should not be used to make a decision about choosing a companion dog”, the researchers emphasize.

“In the diverse group of our ancestors, we show that the behavioral traits responsible for modern nations are: Polygenic (And hence the combined expression of several genes, which vary quantitatively from one person to another, ed) e Influenced by the environment, And is found, in all races, with variable prevalence. We believe that the behaviors that are considered to be characteristic of modern nations are derived from Thousands of years of polygenic adaptation Before breeding, modern varieties are mainly characterized by aesthetic features.

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