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For the new study, an international team analyzed the complete genomes of 161 people from 14 groups in Indonesia and Papua New Guinea. In the DNA of 60 people from New Guinea, population biologist Murray Cox of Massey University in Palmerston North, New Zealand, and molecular biologist Herawati Sudoyo of the Eijkman Institute for Molecular Biology in Jakarta and their colleagues found an unexpected twist. The first Denisovan DNA discovered, from the Siberian cave, comes from a single population (which geneticists have labeled D0). But “Papuans carry DNA from at least two [other] Denisovan populations, called D1 and D2,” Cox said in his talk, which was filmed in advance and played at the meeting.
When the team members analyzed the DNA with three statistical methods, they found that the two additional sources of Denisovan DNA came from populations so distantly related that they had diverged more than 283,000 years ago. And the D2 population is most distant from the Siberian Denisovans, splitting off roughly 363,000 years ago. That makes those two populations almost as distantly related to each other as they are to Neanderthals, Cox says. “We used to think of Denisovans as a single group,” notes Cox, who suggests as an aside that the D2 group might even need a new name.
https://www.sciencemag.org/news/201...HKYMGgCLVxaJbZnPJ9flla6kw7paxNV6FV8_B2NUj0nJM
Is there a publication yet?
When the team members analyzed the DNA with three statistical methods, they found that the two additional sources of Denisovan DNA came from populations so distantly related that they had diverged more than 283,000 years ago. And the D2 population is most distant from the Siberian Denisovans, splitting off roughly 363,000 years ago. That makes those two populations almost as distantly related to each other as they are to Neanderthals, Cox says. “We used to think of Denisovans as a single group,” notes Cox, who suggests as an aside that the D2 group might even need a new name.
https://www.sciencemag.org/news/201...HKYMGgCLVxaJbZnPJ9flla6kw7paxNV6FV8_B2NUj0nJM
Is there a publication yet?