Date: 2 months ago   Category: Investigations

The mysterious ancestor of the person is found


Scientists from Spain and Estonia revealed signs of existence of earlier unknown died-out ancestors of Homo sapiens. This "illusive" ancient population was revealed by means of the genetic analysis with use of artificial neural network. It was related to Neanderthal men and denisovsky people and also transferred some genes to modern people. Science Alert reports about it. It is known that people of modern anatomy left Africa less than 100 thousand years ago and were settled across Eurasia, being sometimes crossed to other types of the sort Homo — Neanderthal men and the denisovsky person. It led to introgression of DNA of the died-out forms of people in Homo sapiens genome. Scientists managed to sequence (to establish the sequence of nucleotides) genomes of Neanderthal men and denisovets and to prove that their DNA really meets at not African populations of the modern person. At the same time researchers did not know exact number of introgressions and also what impact they had on a gene pool of the modern person. In new work scientists used methods of deep machine learning for the analysis of ancient and modern genomes to construct the most probable picture of introgressions corresponding to the current genetic data. It turned out that except Neanderthal and denisovsky population which made the contribution to a gene pool of the modern person there was one more population which became a source of genes for human populations in Asia and Oceania. According to researchers, this unknown population consisted or of the immediate genetic family of Neanderthal men and denisovets, or ancient people who early branched off from the line of the denisovsky person. Earlier it was reported that the international group of scientists managed to determine dates of stay of Neanderthal men and denisovets in the Denisovy cave. It became clear that denisovsky people lived in a cave at least 200 thousand years ago, and they could lodge in it 300 thousand years ago. Neanderthal men came to the same place 100-200 thousand years ago. "The film of day" is more than important news in Telegram channel. Subscribe!

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