Thursday , February 25 2021

A study suggests several breeding cases between Neanderthal and early people

Comparison of Modern Human Neanderthal Skulls from the Cleveland Natural History Museum. Credit: DrMikeBaxter / Wikipedia

A pair of researchers at the University of the Temple have found evidence suggesting that Neanderthalular has often tied and produced their impact with modern anatomical people – not just once, as suggested by previous research. In their paper published in the magazine Nature Ecology and Evolution, Fernando Villanea and Joshua Schraiber describe their genetic analysis of East Asian people and Europe and how they compare with people from other places. Fabrizio Mafessoni with the Max Planck Foundation for Evolutionary Anthropology offers a News and Opinion piece on the work made by the pair in the same magazine issue.

In recent years, scientists have found that early people moving from Africa have found Neanderthalians living in parts of Europe and East Asia. When comparing a Neanderthal DNA with modern men, researchers have found that there is at least one pair that led to suffering, which is reflected in the DNA of people – about 2 per cent of DNA are in men who are not They are in Africa today in Neanderthal. In this new effort, researchers have found evidence that suggests that there is more than one meeting.

Their findings make a logical sense, considering that modern anatomical men and Neanderthalians coexist for about 30,000 years. Recent research by other groups had suggested that multiple production unions had taken place – some people in East Asia, for example, have found up to 20 percent more of Neanderthal DNA than people of European designation. In this new effort, researchers looked harder to find out once and for all if there were only several couples or one. Data from the 1000 Genom Project was extracted and analyzed, measuring the amount of Neanderthal DNA in genetic material from volunteers. The first step was to divide the data between people of European and Asian antiquity. Doing that suggested that both groups had evidence of multiple early mating events. Then researchers studied the rates of both groups by creating simulations showing the results of different match number numbers between the two groups. Then, data from the simulations was fed to a machine learning algorithm that showed DNA percentage patterns based on the number of cross-breeding incidents that occurred.

The researchers came to the conclusion that the most likely scenario was that there were a number of cases of cross-breeding between early people in East Asia and Europe with Neanderthalidae.

Further investigation:
Modern men inherited viral defenses by Neanderthalians

More information:
Fabrizio Mafessoni. Combined with archaeic homininians, Nature Ecology and Evolution (2018). DOI: 10.1038 / s41559-018-0729-6

Fernando A. Villanea et al. Multiple periods of interventions between Neanderthal and modern people, Nature Ecology and Evolution (2018). DOI: 10.1038 / s41559-018-0735-8

Magazine reference:
Nature Ecology and Evolution

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