Artificial intelligence applied to the genome identifies an unknown human ancestor

By combining intensive learning algorithms and statistical methods, the investigator from Evolutionary Biology (IBE) Institute, Center for Genomic Function (CRG) and Centro Nacional de Anáisis Genómico (CNAG-CRG) of the genomics center at Tartu University.

 In the genome of Asian people, the footprint of a new hominid has been identified, which had crossed with its ancestor's thousands of years ago.

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Modern human DNA computational analysis shows that the extinct species was a hybrid of Neanderthals and Denisovans and out of Africa in Asia was cross bread with modern humans. 

This discovery reveals that the hybrid found this summer in the caves of Denisova - the child of a Neanderthal mother and the father of Denisovan - was not a separate matter, but rather a part of a more general introverted process.

In the study published in nature communication, biology, genomics and other questions in development use the first time for intensive learning for human development that paves the way for the application of this technique.

Humans had a species that is unknown to us

One of the ways to differentiate between two species is that when they can cross both breeds, they usually do not produce fertile descent. 

However, this concept is very complex when extinct species are involved.

 In fact, the story told by the current human DNA blurts the lines of these lines, which protect Hominid fragments from other species, such as Neanderthal and Denisovans, such as Eurasia, who cooperate with modern humans 40,000 years ago. Does.

Now, the investigators of the Institute of Evolutionary Biology (IBE), Centro National de analysis of the Center for Genomic Regulation (CRG), and Tartu University used a deep learning algorithm to identify a new and hitherto 

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The ancestor of a human being who interferes with modern humans thousands of years ago. 

"Approximately 80,000 years ago, the so-called Out of Africa happened when the part of the human population, which already had modern humans, left the African continent and moved to other continents, gave birth to all current populations," Bertrandpet, Chief Investigator at IBE and Department Head in UPF.

We know that from that time onwards, the modern humans, apart from Africa, bred with Neanderthal in all continents, and with Denisovans in Oceania and perhaps in Southeast Asia, through cross-breeding with a third extinct species The evidence was not confirmed with any certainty. "

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Deep Education: Explaining the Key to Human Development in Ancient DNA

Heathrow, the existence of the third ancestor was only a theory that would explain the origin of some parts of the present human genome (part of the team involved in this study had already exposed the existence of extinct Hominid in the previous study). 

However, deep learning has made it possible to transition from DNA of demographic populations to the native population.

The problem faced by investigators is that the demographic models that they have analyzed are far more complex than today's date and no statistical tools were available to analyze them.

 Deep Learning "is an algorithm that mimics the way in which the nervous system of mammals works, with various artificial neurons, who learn to detect and learn data, patterns to perform a given task. 

The key is, "Bring Lascar, the chief investigator said. CNAG-CRG and a specialist in this kind of simulation.

 "We have used this property to obtain algorithms to estimate human demography using the genome obtained through thousands of properties. 

Whenever we run a simulation, then we will have a possible path in the history of mankind All simulations, intensive education, allows us to see that the ancestral puzzle is fitted together. "

This is the first time that the use of deeper education has been successfully used to explain human history, this technique has been paved the way for the implementation of biology, genomics and other questions in the development.

An extinct hominid can explain the history of humankind

An analysis of intensive learning has shown that extinct hominids are possibly descendants of Neanderthal and Denisovan populations. 

In these summers, the discovery of a fossil with these characteristics aggregates the idea of this third species or population, which coexists with modern humans and studies. 

Former explorer of the University of Tartu and former investigator in IBE, Mukh Mondal said, "Our theory recently coincided with the recently discovered hybrid sample in Denisova, although we can not dismiss other possibilities."