A world map of Neanderthal and Denisovan ancestry in modern humans -- ScienceDaily
Many people around the world have more Denisovan DNA than previously thought, which has contributed to their sense of smell and ability to thrive at high altitudes, according to a study released Monday.
Researchers know that modern humans with ancestry outside of Africa inherited up to 2.1 percent of their DNA from Neanderthals. But far less was known about Denisovans, who are believed to have shared origins with Neanderthals and account for up to 5 percent of DNA in some present day populations.
The latest work, from a research team at Harvard Medical School and UCLA, developed a world map of ancient DNA. In doing so, they found that populations in Oceania populations had the highest percentage of ancient DNA – 2 percent Neanderthal and 5 percent Denisovan - while South Asians had more Denisovan DNA – 0.1 percent in Sherpas - than expected. That raises the possibility of unknown interbreeding events.
Western Europeans are the least likely non-Africans to have Neanderthal or Denisovan DNA while Africans have almost none.
Most non-Africans possess at least a little bit Neanderthal DNA. But a new map of archaic ancestry suggests that many bloodlines around the world, particularly of South Asian descent, may actually be a bit more Denisovan, a mysterious population of hominids that lived around the same time as the Neanderthals. The analysis also proposes that modern humans interbred with Denisovans about 100 generations after their trysts with Neanderthals.Neanderthal DNA: There's a little cave man in all of us - CNN.com
Your ancestry can reveal a lot about you, including how related you are to cave men.If you have Chinese heritage, you might have slightly more Neanderthal in your genome, while a new study finds that people from South Asia have more Denisovan, another type of early human, in their DNA.