![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/6/67/Map_of_gene_flow_in_and_out_of_Beringia.jpg/640px-Map_of_gene_flow_in_and_out_of_Beringia.jpg&w=640&q=50)
Ancient Beringian
Extinct archaeogenetic lineage / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Ancient Beringian?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
This article is about the genetic lineage associated with the peopling of the Americas. For the archaeogenetics of the USR population, see Upward Sun River site § Archaeogenetics.
The Ancient Beringian (AB) is a human archaeogenetic lineage, based on the genome of an infant found at the Upward Sun River site (dubbed USR1), dated to 11,500 years ago.[1] The AB lineage diverged from the Ancestral Native American (ANA) lineage about 20,000 years ago. The ANA lineage was estimated as having been formed between 20,000 and 25,000 years ago by a mixture of East Asian (~56–68%) and Ancient North Eurasian (~32–44%) lineages, consistent with the model of the peopling of the Americas via Beringia during the Last Glacial Maximum.[2][3][4]
![Schematic illustration of maternal geneflow in and out of Beringia.Colours of the arrows correspond to approximate timing of the events and are decoded in the coloured time-bar. The initial peopling of Berinigia (depicted in light yellow) was followed by a standstill after which the ancestors of indigenous Americans spread swiftly all over the New World, while some of the Beringian maternal lineages–C1a-spread westwards. More recent (shown in green) genetic exchange is manifested by back-migration of A2a into Siberia and the spread of D2a into north-eastern America that post-dated the initial peopling of the New World.](http://upload.wikimedia.org/wikipedia/commons/thumb/6/67/Map_of_gene_flow_in_and_out_of_Beringia.jpg/640px-Map_of_gene_flow_in_and_out_of_Beringia.jpg)