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FTDNA Y-tree branch

R-Z31

Equivalent branches, the same kits: R-Z7 (4,389 kits, 3,700 years)

R-Z31 is a branch of the FamilyTreeDNA Y tree with 4,389 kits that gave a country, counting all sub-branches. It is most common in these samples: Belgium (Flanders) (8.2% of kits), Barbados (8.1% of kits), Netherlands (5.8% of kits). The branch's common ancestor lived about 3,600 years ago: the FTDNA Discover estimate runs from 3,100 to 4,100 years ago. The oldest of the equivalent branches, R-Z7, split off about 3,700 years ago by Discover. YFull has 421 samples in this branch and dates its common ancestor to 3,700 years ago.

4,389
kits in the branch
with a country given, including all sub-branches
99
on the branch itself
kits whose test did not resolve a sub-branch
25%
Big Y
share of kits with a Big Y test among all kits of the branch, sub-branches included
6
sub-branches
2 with their own page, 4 without
3,600 years
age by Discover
the common ancestor lived 3,100 to 4,100 years ago
3,700 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
England 1,223 4.4%
United States 1,053 3.4%
United Kingdom 346 3.6%
Germany 311 1.8%
Scotland 299 2.1%
Ireland 248 1.1%
Sweden 173 1.4%
Netherlands 133 5.8%
Norway 81 1.8%
Northern Ireland 59 2.0%
Denmark 58 3.6%
France 46 0.7%
Finland 42 0.4%
Poland 38 0.5%
Canada 32 1.9%
Wales 32 1.5%
United States (Native American)United States 23 1.3%
Italy 17 0.3%
Belgium 14 2.0%
Czech Republic 14 0.6%
40 more

The remaining countries and regions (40), 147 kits in total: England (Cornish) 11, Switzerland 11, Australia 10, Hungary 10, Belgium (Flanders) 8, Spain 8, Ukraine 8, Barbados 7, Russian Federation 6, Latvia 5, Slovenia 5, South Africa 5, Lithuania 4, Mexico 4, Bahamas 3, Bulgaria 3, Estonia 3, Portugal 3, Romania 3, Slovakia 3, India 2, Jamaica 2, Luxembourg 2, New Zealand 2, Scotland (Orkney) 2, Scotland (Shetland) 2, Spain (Galicia) 2, Argentina 1, Austria 1, Belarus 1, Brazil 1, Costa Rica 1, Croatia 1, Dominican Republic 1, France (Alsace) 1, Guernsey 1, Isle of Man 1, St. Vincent and the Grenadines 1, Venezuela 1, Zimbabwe 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.

R-Z8
3,349 · 76.3% 3,000 years
R-FGC902
911 · 20.8% 3,500 years

4 small sub-branches more without a page: 30 kits. On the branch itself, without a resolved sub-branch: 99 kits.

Surnames #

Surnames that testers entered at FTDNA, over the whole branch with its sub-branches: 302 distinct among 1,285 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%.

R-Z7: 421 samples. The common ancestor lived 3,700 years ago (3,200–4,300); the branch split off 3,900 years ago (3,500–4,300).

In the site's findings #