Mitochondrial Haplogroup A
Haplogroup A is believed to have originated in Asia approximately 30-50,000 years ago. One branch, A2 is common in Native American populations, though it is also widespread in Asia generally. Native American populations have the highest frequencies (primarily A2) though East Asians have the most diversity within Haplogroup A, suggesting that it may indeed have originated in East Asia. Haplogroup A4 is found across Asia from Siberia to Northern Iran, whereas A5 seems to be limited to East Asia, particularly Korea and Japan. Haplogroup A (no subgroup) is found in Tibeto-Burman speaking populations and Altai and Tatars but is also recorded in Taiwan and amongst the Ainu of Japan. It is also recorded at low frequency in Turkey, Uzbekistan, Turkmenistan, Northern Pakistan.