Ancient links between Siberians and Native Americans revealed by subtyping the Y chromosome haplogroup Qa   See  Ancient links between Siberians and Native Americans revealed by subtyping the Y chromosome haplogroup Qa which is a new article in the Journal of Human Genetics QaMEH likely traces a population migration originating in Northeast Siberia across the Bering Strait However this is a relatively late connection Despite the low coalescence age of haplogroup QaM which is estimated in South Siberia as about  thousand years ago Ka divergence time between these QaM haplotypes and Amerindianspecific haplogroup QaaM is equal to Ka pointing to a relatively recent entry date to America  and Although the level of STR diversity associated with QaMEH is very low this lineage appears to be closest to the extinct PalaeoEskimo individuals belonging to the Saqqaq culture arisen in the New World Arctic about Ka