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FTDNA Y-tree branch

O-K2

Equivalent branches, the same kits: O-CTS1348 (54 kits, 5,200 years)

O-K2 is a branch of the FamilyTreeDNA Y tree with 54 kits that gave a country, counting all sub-branches. It is most common in these samples: Japan (7.8% of kits), Korea, Republic of (4.7% of kits), Russian Federation (0.0% of kits). The branch's common ancestor lived about 3,500 years ago: the FTDNA Discover estimate runs from 2,900 to 4,100 years ago. The oldest of the equivalent branches, O-CTS1348, split off about 5,200 years ago by Discover. YFull has 39 samples in this branch and dates its common ancestor to 3,100 years ago.

54
kits in the branch
with a country given, including all sub-branches
19
on the branch itself
kits whose test did not resolve a sub-branch
9%
Big Y
share of kits with a Big Y test among all kits of the branch, sub-branches included
2
sub-branches
0 with their own page, 2 without
3,500 years
age by Discover
the common ancestor lived 2,900 to 4,100 years ago
3,100 years
age by YFull
common ancestor (TMRCA); the branch split from its parent 4,600 years ago

Where it is found #

Countries and regions given by the branch's carriers. “Share of branch” is the part of the branch's kits that belongs to the country. “Share of country” is the part of that country's kits that falls into the branch; it is computed only for countries with at least 50 kits.

Where it is found
Country / region kits Share of branch Share of country
Japan 41 7.8%
Korea, Republic of 11 4.7%
Russian Federation 2 <0.1%
YFull

Most common among these peoples #

From YFull samples that gave a mother tongue: the part of a people's samples that falls into this branch. Peoples with at least 3 samples in the branch are listed.

Sub-branches #

Sub-branches that have their own page (50 kits or more). The bar is the kits in the sub-branch with its own sub-branches; the age is when its common ancestor lived.

No sub-branch has its own page: only small branches lie below.

2 small sub-branches more without a page: 35 kits. On the branch itself, without a resolved sub-branch: 19 kits.

Surnames #

Surnames that testers entered at FTDNA, over the whole branch with its sub-branches: 2 distinct among 4 kits. FTDNA gives surnames per branch only, with no country attached, so they cannot be split by country.

YFull

The same branch on YFull #

YFull builds its tree from the same SNPs; the node is matched by name or by a shared SNP. TMRCA is when the common ancestor of all samples lived, formed is when the branch split from its parent. Intervals are 95%.

O-K2: 39 samples. The common ancestor lived 3,100 years ago (2,800–3,400); the branch split off 4,600 years ago (3,700–5,500).