The complete genome has recently been sequenced from 4 year old Russian boy who died 24,000 years ago near Lake Baikal in a location called Mal’ta, the area in Asia believed to be the origin of the Native Americans based on Y DNA and mitochondrial chromosome similarities. The map below, from Science News, shows the location.
This represents the oldest complete genome ever sequenced, except for the Neanderthal (38,000 years old) and Denisovan (41,000 years old).
This child’s genome shows that he is related closely to Native Americans, and, surprisingly, to western Asians/eastern Europeans, but not to eastern Asians, to whom Native Americans are closely related. This implies that this child was a member of part of a “tribe” that had not yet merged or intermarried with the Eastern Asians (Japan, China, etc.) that then became the original Native Americans who migrated across the Beringian land bridge between about 15,000 and 20,000 years ago.