FTDNA Y-tree branch

I-Z74

Equivalent branches, the same kits: I-CTS6868 (3,810 kits, 3,800 years)

I-Z74 is a branch of the FamilyTreeDNA Y tree with 3,810 kits that gave a country, counting all sub-branches. It is most common in these samples: Finland (17% of kits), Norway (8.6% of kits), Russia (Republic of Karelia) (8.4% of kits). The branch's common ancestor lived about 3,500 years ago: the FTDNA Discover estimate runs from 3,100 to 4,000 years ago. The oldest of the equivalent branches, I-CTS6868, split off about 3,800 years ago by Discover. YFull has 583 samples in this branch and dates its common ancestor to 3,900 years ago.

3,810

kits in the branch

with a country given, including all sub-branches

on the branch itself

kits whose test did not resolve a sub-branch

26%

Big Y

share of kits with a Big Y test among all kits of the branch, sub-branches included

sub-branches

2 with their own page, 2 without

3,500 years

age by Discover

the common ancestor lived 3,100 to 4,000 years ago

3,900 years

age by YFull

common ancestor (TMRCA); the branch split from its parent 3,900 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
Finland	1,714	45.0%	17%
Sweden	970	25.5%	8.0%
Norway	391	10.3%	8.6%
United States	111	2.9%	0.4%
Scotland	110	2.9%	0.8%
England	109	2.9%	0.4%
Ireland	85	2.2%	0.4%
Russian Federation	49	1.3%	0.7%
United Kingdom	46	1.2%	0.5%
Denmark	36	0.9%	2.2%
Germany	36	0.9%	0.2%
Northern Ireland	36	0.9%	1.2%
Iceland	11	0.3%	5.6%
France	10	0.3%	0.2%
Russia (Republic of Karelia)Russian Federation	9	0.2%	8.4%
Ukraine	8	0.2%	0.2%
Canada	7	0.2%	0.4%
Italy	7	0.2%	0.1%
Netherlands	7	0.2%	0.3%
Poland	7	0.2%	<0.1%

26 more

The remaining countries and regions (26), 51 kits in total: Jamaica 5, Belgium 4, Estonia 4, Turkey 4, United States (Native American) 4, Australia 3, Austria 3, Switzerland 3, Belarus 2, Sápmi (Sámi) 2, Wales 2, Croatia 1, Czech Republic 1, Faroe Islands 1, Hungary 1, Isle of Man 1, Kazakhstan 1, Lithuania 1, Macedonia 1, Mexico 1, Russia (Republic of Tatarstan) 1, Scotland (Shetland) 1, Serbia 1, Slovakia 1, South Africa 1, Togo 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.

Finns: 13% of samples (20 of 159)
Norwegians: 9.1% of samples (3 of 33)
Swedes: 2.7% of samples (5 of 187)
Turks: 1.9% of samples (3 of 159)
English: 0.6% of samples (6 of 1,050)
Russians: 0.5% of samples (4 of 821)

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.

I-CTS2208

2,116 · 55.5% 2,800 years

I-L813

1,583 · 41.5% 2,900 years

2 small sub-branches more without a page: 46 kits. On the branch itself, without a resolved sub-branch: 65 kits.

Surnames #

Surnames that testers entered at FTDNA, over the whole branch with its sub-branches: 148 distinct among 430 kits. FTDNA gives surnames per branch only, with no country attached, so they cannot be split by country.

Tipton 21
Holopainen 19
Gillespie 16
Nevalainen 10
Andersson 7
Hendrick 7
Bybee 6
Campbell 6
Herrick 6
Hiltunen 6
Smith 6
Eriksson 5
Johnson 5
McNeil 5
Rothwell 5

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%.

I-CTS6868: 583 samples. The common ancestor lived 3,900 years ago (3,000–4,700); the branch split off 3,900 years ago (3,000–4,700).