`  == Ancient links between Siberians and Native Americans revealed by subtyping the Y chromosome haplogroup Q1a ==  See  ``Ancient links between Siberians and Native Americans revealed by subtyping the Y chromosome haplogroup Q1a`` which is a new article in the Journal of Human Genetics. ``Q1a*-MEH2 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 Q1a3*-M346, which is estimated in South Siberia as about 4.5±1.5 thousand years ago (Ka), divergence time between these Q1a3*-M346 haplotypes and Amerindian-specific haplogroup Q1a3a-M3 is equal to 13.8±3.9?Ka, pointing to a relatively recent entry date to America. `` and ``Although the level of STR diversity associated with Q1a*-MEH2 is very low, this lineage appears to be closest to the extinct Palaeo-Eskimo individuals belonging to the Saqqaq culture arisen in the New World Arctic about 5.5?Ka``   `