Saturday , May 8 2021

The early relationships of people with Neanderthals were not fast, the study says



It's no secret that we all have a little Neanderthal in our DNA-a fact that scientists for years have been attributed to the evolutionary version of the week-long stance between early humans and their primitive relatives.

However, in this evolutionary rum, the analysis of the human genome suggests that our ancestors engaged in connection with a more serious connection from a quick throw – with results that show up to this day.

The study, which analyzed the distribution of Neanderthal DNA fragments among modern Europeans and East Asia, revealed that the last population transmits 12-20 percent more Neanderthal DNA – far from two percent that scientists believe most people carry.

Researchers Fernando Vilinea and Joshua Schreiber have decided to test the finding by comparing the Neanderthal DNA model to people of East Asian and European origin using data from the 1000 genomic project. They first split the data between the two groups, proving incidents of multiple pairs in both. They then studied the footsteps of the frequency of Neanderthal fragments between groups with created cross-breeding simulations, which show the results of a different number of mating between the two groups.

Site of meetings between different archaic hominins and ancient modern people (AMH)

Fabrizio M.

The data from the simulations were entered into a machine learning algorithm that appeared with all crossing events that could lead to the models of the observed neanderthal DNA.

"Thus, we believe that the probable explanation for our results is that the flow of the gene between humans and Neanderthals was intermittent and ongoing, but in a slightly geographically limited region," the authors write in their paper, published in Nature Ecology and Evolution.

The findings not only show more complex links between early humans and Neanderthals, but also reflect earlier views of Neanderthal's place in human history. It has been a long way since 1864, when scientists first classified hominids as a special species from Homo Sapiens.


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