Mitochondrial haplogroup H is a predominantly European haplogroup that participated in a population expansion beginning approximately 20,000 years ago. Overall more than 40% of the total European population carries this mitochondrial variation. It is rather uniformly distributed throughout Europe suggesting a major role in the peopling of Europe, and descendant lineages of the original haplogroup H appear in the Near East as a result of migration. It can also be found in the Caucasus and Central Asian regions, though frequencies are considerably lower than that of Europe. More than twenty subclades of haplogroup H have been identified with several showing regional distributions.
A Haplogroup assignment of H* indicates that you belong to Haplogroup H, but not to any of the presently known subclades. Future work will undoubtedly better resolve the distribution and historical characteristics of this haplogroup.
H1 – H1 is the most common branch of haplogroup H. It represents 30% of people in haplogroup H, and 46% of the maternal lineages in Iberia. 13-14% of all Europeans belong to this branch, and H1 is about 13,000 years old.
H1a – H1a is a branch of H1. Further research will better resolve the distribution and historical characteristics of this haplogroup.
H1b – H1b is detected at its highest frequency in Eastern Europe and North Central Europe. It is also found in about 5% of haplogroup H lineages in Siberian Mansis.