Description
C2a1a3a1a (FT411734) is the defining paternal lineage of the Abak Kerey, one of the two primary clans of the Kazakh Kerey tribe (Middle Zhuz). The FT411734 marker was identified through Big Y whole Y-chromosome sequencing of Kerey clan members. Among Abak Kerey men tested, 69.8% carry this specific marker, making it a reliable clan-defining Y-chromosome signature. The Abak clan and the sister Ashamaily clan both descend from the C2a1a3a1 (F5481) ancestor — the common Kerey forefather who lived approximately in the mid-9th century CE. Carriers of FT411734 exhibit a characteristic DYS448 = 23 allele in 89.7% of cases.
Interesting Fact
The FT411734 marker is so strongly associated with the Abak Kerey that it functions as a near-perfect genetic passport for clan membership — a man testing positive for FT411734 can trace his paternal ancestry directly to the founding lineage of one of the most historically influential Kazakh tribes of the Central Asian steppe.
Distribution by Ethnicity
| Ethnic distribution | Region | Frequency | Sample |
|---|---|---|---|
| Abak Kerey | Kazakhstan | n=130 | |
| Kazakhs (Kerey, general) | Central Asia | n=400 |
Associated Clans & Tribes
Clan
Abak
Kazakhstan (Middle Zhuz)
Primary Kerey sub-clan carrying FT411734 at ~70%; sister clan to Ashamaily (FT224144)
Tribe
Kerey
Kazakhstan
One of the largest Kazakh Middle Zhuz tribes; historically descended from the Kereit confederation of the pre-Mongol steppe
Tags
References
- Zhumadilova et al. (2024) — Y-Chromosomal insights into the paternal genealogy of the Kerey tribe have called into question their descent from the Stepfather of Genghis Khan. PLOS ONE. PMC11373838.