Dir Surname: Y-DNA Haplogroup
Published genetics research or a documented case study links the surname Dir to a specific Y-DNA paternal-line haplogroup.
T-M184 (T1a)
Clade T1a
Also spelled: Dir clan (Somali)
Sampling of Dir clan males in Djibouti found the Y-DNA T1a (T-M184/T-M70) lineage at 100% frequency in this cohort, the highest reported frequency of haplogroup T worldwide for any named population/clan group; broader Somali T lineages also skew toward Dir and related northern clans.
Source: Iacovacci G, Sarno S, De Fanti S, et al. "Forensic data and micro-variant sequence characterization of 27 Y-STR loci analyzed in four Eastern African countries." Forensic Science International: Genetics. 2016;27:123-131.
How to read this. A surname match means some people with that surname, in a specific study or family record, were found to share a haplogroup, most likely due to a shared patrilineal ancestor generations back. It is not proof that you personally carry that haplogroup: surnames change through adoption, remarriage, non-paternity events, and independent origin of the same name in different families. For your own confirmed haplogroup, test your DNA with our HaploAI Y-DNA/mtDNA predictor.
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