Distribution
Haplogroup T-M184 (M193, M272, L206, PAGES129) is found in an insignificant majority of Kurru, Bauris & Lodha in South Asia; and in a significant minority of Rajus and Mahli in South Asia; Somalis, southern Egyptians and Fulbe in north Cameroon; Chian Greeks, Saccensi/Sicilians, Eivissencs / Ibizans and Northeastern Portuguese Jews in Europe; Sayyid in the Indo-Middle Eastern continent and Zoroastrians, Bakhtiaris/Lurs in the Middle East.
Haplogroup T-M184 is not associated with the R1, G and J lineages that entered Africa from Eurasia relatively recently. Luis et al. (2004) suggest that the presence of the clade on the African continent may, like R1* representatives, point to an older introduction from Asia. The Levant rather than the Arabian Peninsula appears to have been the main route of entry, as the Egyptian and Turkish haplotypes are considerably older in age (13,700 ybp and 9,000 ybp, respectively) than those found in Oman (only 1,600 ybp). According to the authors, the spotty modern distribution pattern of haplogroup T-M184 within Africa may therefore represent the traces of a more widespread early local presence of the clade. Later expansions of populations carrying the E1b1b, E1b1a, G and J NRY lineages may have overwhelmed the T-M184 clade-bearers in certain localities.
The distribution of haplogroup T-M184 in most parts of Europe is patchy or regionalized; for example, haplogroup T-M184 was found in 1.7% (10/591) of a pool of six samples of males from southwestern Russia, but it was completely absent from a pool of eight samples totalling 637 individuals from the northern half of European Russia. The Russians from the southwest were from the following cities: Roslavl, Livny, Pristen, Repyevka, and Belgorod; and Kuban Cossacks from the Republic of Adygea.
Family Tree DNA, a commercial genetic genealogy company, has displayed a map that shows a relatively high frequency of haplogroup T-M184 in some Australian aborigines. Probably the populations coincide with those previously reported in several studies as K*(M9), with a frequency near to 30% in Northern Australia. According to Family Tree DNA, the defining SNP for haplogroup T-M184 is M184, while M70 defines T1.
Read more about this topic: Haplogroup T (Y-DNA)
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