Nearly one-third of Native American genes come from west Eurasian people linked to the Middle East and Europe, rather than entirely from East Asians as previously thought

 I highlighted this back in 2013 but  it seems to be gaining more traction now.

"Great Surprise"—Native Americans Have West Eurasian Origins

Oldest human genome reveals less of an East Asian ancestry than thought.

ByBrian Handwerk

November 22, 2013

"These results were a great surprise to us," said study co-author and ancient-DNA specialist Eske Willerslev

, of the University of Copenhagen, Denmark.

"I hadn't expected anything like this. A genome related to present-day western Eurasian populations and modern Native Americans as well was really puzzling in the beginning. How could this happen?"

Prevailing theories suggest that Native Americans are descended from a group of East Asians who crossed the Bering Sea via a land bridge perhaps 16,500 years ago, though some sites may evidence an earlier arrival. (See "Siberian, Native American Languages Linked—A First [2008].")

"This study changes this idea because it shows that a significant minority of Native American ancestry actually derives not from East Asia but from a people related to present-day western Eurasians," Willerslev said.