They are hidden from before A wise man He inhabited what is now southwest China about 14,000 years ago and brought it to the ancestors of the American ancestors.
The evolutionary identity of this distant Asian group has been revealed by ancient DNA extracted from a cap previously found at Mengzi Ren, or MZR, located in western China’s Red Deer Cave, researchers report on July 14. Current Biology.
It is a rare opportunity to discover the narrows where the ancestors of the ancient Americans came from the vast East Asia.
Geneticist Bing Su of China’s Kunming Institute of Zoology and colleagues recovered nearly all of the fossilized mitochondrial DNA, typically inherited from the mother, and about 3.3 percent of nuclear DNA, which is inherited from both parents.
Hominid fossils unearthed in Red Deer Cave in 1989 look like modern-day humans in some ways, but similar to Neandertals and Asians in others. Standing man (SN: 12/18/19). That unusual mix of skeletons has inspired debate about whether they represent Chinese fossils H. wise or with different origins (SN: 12/17/15).
New genetic analyzes and comparisons with modern and ancient MZR individuals have DNA pegged as female. H. wise from the east of South Asia. Much like today’s East Asians, their ancient female ancestors included small contributions from Denisovans and Neandertals.
Sui’s group found that the MZR woman brought genetic links to ancient humans in the Americas, dating back as early as 12,000 years ago. Some ancient Southeast Asians crossed the east coast of China, perhaps via Japan, and crossed a land bridge to North America, scholars suspect.
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