Haplogroup K2 (M70, M184, M193, M272) is a human Y-chromosome DNA haplogroup.
Haplogroup K2 is present at a low level throughout Africa, Southwest Asia, South Asia, and Southern Europe, and, at an even lower level, throughout Europe. A famous member of the K2 haplogroup is Thomas Jefferson; his Y-chromosomal complement received prominence through the Sally Hemings controversy. Haplogroup K2-M70 has been detected in 10.4% (21/201) of Somali, 8.3% (10/121) of Omani Arab, 8.2% (12/147) of Egyptian, and 7.2% (10/139) of Iraqi males, which is much higher than its frequency in other populations.[1]
Other regions that have been found to contain a significant proportion of haplogroup K2 individuals include South India (18/305 or 5.9%), United Arab Emirates (8/164 or 4.9%), Ethiopia (6/126 or 4.8%), East India (14/367 or 3.8%), South Iran (4/117 or 3.4%), and Turkey (13/523 or 2.5%).[2][3][4]
References
- ↑ J. R. Luis, D. J. Rowold, M. Regueiro, B. Caeiro, C. Cinnioğlu, C. Roseman, P. A. Underhill, L. L. Cavalli-Sforza, and R. J. Herrera, "The Levant versus the Horn of Africa: Evidence for Bidirectional Corridors of Human Migrations," American Journal of Human Genetics 74:532-544, 2004
- ↑ Alicia M Cadenas, Lev A Zhivotovsky, Luca L Cavalli-Sforza, Peter A Underhill and Rene J Herrera, "Y-chromosome diversity characterizes the Gulf of Oman," European Journal of Human Genetics (2007), 1 - 13
- ↑ M. Regueiro et al.: "Iran: Tricontinental Nexus for Y-Chromosome Driven Migration," Human Heredity, 2006, vol. 61, pp. 132–43.
- ↑ Cinnioglu, Cengiz, et al., "Excavating Y-Chromosome Haplotype Strata in Anatolia," Human Genetics, 2004, vol. 114, pp. 127–48.