Neanderthals leave us a genetic inheritance to fight the cold


Science has discovered where our resistance to the cold comes from. At present, we still have traits of the first Neanderthals who endured very low temperatures, and to this day, we continue to take advantage of their genetics.

It is about knowing how to metabolize fats so that you can stand on a newly thawed continent. This has meant a new way of conceiving our species since until recently it was believed that Neanderthals and modern humans were two species isolated from 500,000 years ago.

Between the crosses of Europe and the East, passed multitude of genes that are the ones in charge to distribute and to metabolize the fats to conserve the human heat. What is a novelty in this whole affair is that these genes have been of vital importance for the adaptation of Homo Sapiens, who from Africa had to acclimatize to the cold environments of the newly thawed European continent. The correct term for such a phenomenon is what is known in botany as hybrid vigor.

Philipp Khaitovich of CAS Key Laboratory of Shanghai Computational Biology has reported in Nature Communications that “Neanderthal genes involved in lipid catabolism are overrepresented in the genomes of modern Europeans, or more accurately, people Current European ancestors. ”

Following different studies carried out by Khaitovich and his colleagues, it has been shown that comparisons between the DNA sequences of the Neanderthals and those of modern humans around the globe allow scientists to know where a species originated and how Has spread throughout the continents throughout prehistory.

In conclusion, studies have found that “genetic variants that evolutionary in Neanderthals could give a selective advantage to anatomically modern humans who settled in the same geographical areas.”


Deja un comentario

Notificar a