Genetic history of P1-M45 Native American migration - R1 & Q people passing the Bering Strait 2

Documentary, Genetic history of P1-M45 Native American migration - R1 & Q people passing the Bering Strait 2
Link; https://en.wikipedia.org/wiki/Genetic_history_of_the_Indigenous_peoples_of_the_Americas

Haplogroups Q and R, specifically subclades of P1-M45, are key markers in the genetic history of Native American migration from Asia. P1-M45 is believed to have originated in Central Asia or Siberia. Haplogroup Q (Q-M242) is dominant among Native Americans, while R (R-M207) is more prevalent in Europe and Central Asia. The presence of these haplogroups, particularly R1 subclades, in both North America and Siberia suggests a prehistoric migration from Asia.
Here's a more detailed look:
Haplogroup P1 (P-M45):
This is the parent haplogroup of both Q and R, with basal P1* found in Siberia and Central Asia.
Haplogroup Q (Q-M242):
This haplogroup is a primary lineage among Native Americans, likely arriving in the Americas via Beringia during a prehistoric migration.
Haplogroup R (R-M207):
While R is not as prevalent in the Americas as Q, it is present and shares a common ancestor with Q in P1-M45. R1 subclades, especially R1b, are commonly found in Europe and have also been identified in North America, suggesting a connection to migrations from Asia.
Migration Patterns:
One theory suggests an initial migration from southern central Siberia into the Americas, extending southward, followed by a later migration from eastern Siberia to North and Central America.
Ancestry:
Native American ancestry is a mix of East Asian and Paleolithic Siberian (Ancient North Eurasian) lineages, with the Ancient North Eurasian component potentially linked to the R haplogroup.
Further Research:
The specific migration routes and the relationships between R subclades in different populations are still areas of ongoing research.