Index – Technical Science – We may have inherited a distinctive part of our face from Neanderthals

Genetic studies conducted by an international research group have proven that the shape of the nose of modern humans has been seriously affected by mixing with Neanderthals. the Nature Communications BiologyAccording to research published in

Over the past 15 years, we’ve mapped Neanderthal genes and learned that our ancestors mixed with Neanderthals, leaving an imprint on our DNA.

The co-author of the study, Dr. Kaustup Adhikari of the University of California, London. As is known, the 2022 Nobel Prize in Medicine was awarded to the Swede Svante Pääbo for the creation of the genetic map of the Neanderthal man.

In the research, the facial anatomy of 6,000 European, African, Latin American, and American Indian volunteers was analyzed (for example, the distance between the tip of the nose and the lips) and compared to their genetic makeup. 33 regions that define facial shape have been identified, and the role of 26 of them across different races has been identified.

Nose hits the world

the ATF3 With regard to a region called there is some indication that this is a recurrent region from the point of view of natural selection, and so the variation is not only interesting but also has practical advantages.

It has long been suggested that the shape of our nose is determined by natural selection, the nose helps regulate the temperature and humidity of the air we breathe, and differently shaped noses are better suited to the climate our ancestors came from. The gene we identified came from Neanderthals and helped people leave Africa and conquer cooler climates

One of the research leaders, Dr. Ching Li of Fudan University.

The group’s researchers working in the United Kingdom, China, France, Argentina, Chile, Peru, Colombia, Mexico, Brazil and Germany highlighted that while previous research typically looked at the genetics of modern Europeans, the current research took into account global diversity. for humans.

This is the second research that identifies ancestral traces that are also recognizable in modern humans. In a study published in 2021, the same team came to the conclusion that the genes that determine the shape of our lips are inherited from another group of human ancestors, the Genesu people.

(natureAnd UCL)