Tech UPTechnologyNew species of hominid found in Asia

New species of hominid found in Asia

denisovanaResearchers at Harvard Medical School in Boston (USA) and the Max Planck Institute for Evolutionary Anthropology in Leipzig (Germany) havesequenced the nuclear genome of an ancestral hominid from eastern Siberiausing DNA extracted froma finger bone. The species, nameddenisovana, lived 30,000 years ago and contributed a significant part of its DNA (more than 5%) to modern Melanesians living in the Pacific islands, including those of Papua New Guinea, according to the magazine published todayNature.

The study authors, led by David Reich and Svante Päävo, sequenced the nuclear genome of a 5 to 10-year-old girl and compared it to that of modern humans and Neanderthals. From the analysis it is deduced the population of Denisova is asister group of neanderthals, which descends from the same ancestral group.

On the other hand, the team also analyzed a tooth found in the same Siberian cave and concluded that it came from different individuals from the same population. Themolar de Denisovais much larger than the large back molars of modern humans andits shape is more like the tooth of a prehuman, Like the ones ofHomoor that ofStanding man. “We hope these results will encourage archaeologists and paleontologists to study the places occupied by Denisovans,” Reich said. “All we have now is a finger bone, a tooth, and a genome.”

According to Richard Green, a co-author of the study, there was probably a group ofancestral hominins that left Africa between 300,000 and 400,000 years agoand they separated into two branches: one that gave rise to the Neanderthals, who dispersed throughout Europe, and another that gave rise to the Denisovans, who migrated towards the East. When modern humans left Africa about 80,000 years ago, they first encountered Neanderthals, and later came into contact with Denisovians, which would explain why there are remnants of their DNA in the genome of current Melanesian populations.

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