with Asian and European Neandertals after leaving Africa at least 60,000 years ago (SN: 8/25/12, p.
That suggests the signal came directly from ancient mixing with Neanderthals, and not recent interbreeding with other modern humans whose ancestors might have interbred
"Intriguingly, the genetic data suggest that male Denisovans interbred
with modern human females, indicating the potential nature of the interactions as small numbers of modern humans first crossed Wallace's Line and entered Denisovan territory," the study authors said.
"The populations that interbred
were similar enough biologically so that they were able to produce fertile offspring, thus allowing genes to flow from one population to the other," he stated.
The patterns of Neandertal DNA found in the human genome suggest that ancient populations interbred
at least twice across Europe and Asia, Vernot and Akey say.
"This confirms recent findings suggesting that the two populations interbred
," says Labuda.
These long-lost human cousins must have then interbred
with modern humans sometime before the common ancestral lineage of the three hunter-gatherer groups separated about 30,000 to 70,000 years ago, Akey says.
sapiens and Neanderthals interbred
sometime between 100,000 and 45,000 years ago, after the first humans left Africa but before they split into regional populations.
DNA extracted from this tiny fossil, unearthed in Siberia's Denisova Cave, unveiled a humanlike population that interbred
with people in East Asia at least 44,000 years ago.
London, Apr 21 (ANI): Archaic humans such as Neanderthals interbred
with the ancestors of modern humans twice, leaving their genes within the DNA of people today, according to a genetic analysis of nearly 2,000 people from around the world.
At least 44,000 years ago, initial arrivals in Southeast Asia interbred
with a humanlike population known as Denisovans that apparently had spread southward from Siberia.
London, Feb 13 (ANI): The first complete draft of the Neanderthal genome has revealed no evidence that this ancient species ever interbred
with modern humans.