page_title: Somalis
section_title: Uniparental lineages
hierarchical_section_title: Somalis / Genetics / Uniparental lineages
caption_attribution_description: English: A Somali man squinting in the heat.
context_page_description: Somalis are an ethnic group belonging to the Cushitic peoples native to Greater Somalia. The overwhelming majority of Somalis speak the Somali language, which is part of the Cushitic branch of the Afroasiatic family. They are predominantly Sunni Muslim. Ethnic Somalis are principally concentrated in Somalia, Ethiopia, Kenya, and Djibouti. Somali diasporas are also found in parts of the Middle East, North America, Western Europe, African Great Lakes region, Southern Africa and Oceania.
context_section_description: According to Y chromosome studies by Sanchez et al. (2005), Cruciani et al. (2004, 2007), the Somalis are paternally closely related to other Afro-Asiatic-speaking groups in Northeast Africa. Besides comprising the majority of the Y-DNA in Somalis, the E1b1b (formerly E3b) haplogroup also makes up a significant proportion of the paternal DNA of Ethiopians, Sudanese, Egyptians, Berbers, North African Arabs, as well as many Mediterranean populations. Sanchez et al. (2005) observed the E-M78 subclade of E1b1b1a in about 70.6% of their Somali male samples. According to Cruciani et al. (2007), the presence of this subhaplogroup in the Horn region may represent the traces of an ancient migration from Egypt/Libya.
  After haplogroup E1b1b, the second most frequently occurring Y-DNA haplogroup among Somalis is the West Asian haplogroup T (M184). The clade is observed in more than 10% of Somali males generally, with a peak frequency amongst the Somali Dir clan members in Djibouti (100%) and Somalis in Dire Dawa (82.4%), a city with a majority Dir population. Haplogroup T, like haplogroup E1b1b, is also typically found among other populations of Northeast Africa, the Maghreb, the Near East and the Mediterranean.
  In Somalis, the Time to Most Recent Common Ancestor (TMRCA) was estimated to be 4000–5000 years (2,500 BCE) for the haplogroup E-M78 cluster γ and 2100–2200 years (150 BCE) for Somali T-M184 bearers.
  Deep subclade E-Y18629 is commonly found in Somalis and has a formation date of 3,700 YBP (years before present) and a TMRCA of 3,300 YBP.
  According to mtDNA studies by Holden (2005) and Richards et al. (2006), a significant proportion of the maternal lineages of Somalis consists of the M1 haplogroup at a rate of over 20%. This mitochondrial clade is common among Ethiopians and North Africans, particularly Egyptians and Algerians. M1 is believed to have originated in Asia, where its parent M clade represents the majority of mtDNA lineages. This haplogroup is also thought to possibly correlate with the Afro-Asiatic language family: In addition, Somalis, and other Horn African populations, also carry a significant rate of maternal L lineages associated with sub-Saharan Africa.
  "We analysed mtDNA variation in ~250 persons from Libya, Somalia, and Congo/Zambia, as representatives of the three regions of interest. Our initial results indicate a sharp cline in M1 frequencies that generally does not extend into sub-Saharan Africa. While our North and especially East African samples contained frequencies of M1 over 20%, our sub-Saharan samples consisted almost entirely of the L1 or L2 haplogroups only. In addition, there existed a significant amount of homogeneity within the M1 haplogroup. This sharp cline indicates a history of little admixture between these regions. This could imply a more recent ancestry for M1 in Africa, as older lineages are more diverse and widespread by nature, and may be an indication of a back-migration into Africa from the Middle East."
caption: A Somali man in a traditional Koofiyad.
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