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FTDNA Y-tree branch

I-BY151

I-BY151 is a branch of the FamilyTreeDNA Y tree with 1,725 kits that gave a country, counting all sub-branches. It is most common in these samples: Russia (Republic of Mordovia) (7.6% of kits), Albania (5.8% of kits), Bosnia and Herzegovina (3.6% of kits). The branch's common ancestor lived about 4,300 years ago: the FTDNA Discover estimate runs from 3,700 to 4,900 years ago. YFull has 398 samples in this branch and dates its common ancestor to 4,400 years ago.

1,725
kits in the branch
with a country given, including all sub-branches
1
on the branch itself
kits whose test did not resolve a sub-branch
28%
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
4,300 years
age by Discover
the common ancestor lived 3,700 to 4,900 years ago
4,400 years
age by YFull
common ancestor (TMRCA); the branch split from its parent 4,400 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
United States 304 1.0%
England 269 1.0%
Germany 211 1.2%
Sweden 107 0.9%
Spain 71 1.8%
United Kingdom 70 0.7%
Ireland 67 0.3%
France 47 0.7%
Poland 45 0.6%
Scotland 42 0.3%
Finland 39 0.4%
Italy 33 0.5%
Netherlands 29 1.3%
Czech Republic 25 1.1%
Norway 24 0.5%
Russian Federation 21 0.3%
Ukraine 21 0.5%
Albania 16 5.8%
Northern Ireland 15 0.5%
Portugal 15 0.8%
52 more

The remaining countries and regions (52), 254 kits in total: Canada 14, Bosnia and Herzegovina 13, Slovenia 13, Switzerland 13, Russia (Republic of Mordovia) 12, Brazil 11, Denmark 11, Hungary 11, Bulgaria 10, United States (Native American) 10, Wales 10, Estonia 9, Belgium 8, Croatia 8, Mexico 8, Serbia 8, Lebanon 6, Puerto Rico 6, Romania 6, Slovakia 6, Austria 5, Greece 5, Australia 4, Lithuania 3, South Africa 3, Turkey 3, Azerbaijan 2, Chile 2, Colombia 2, England (Cornish) 2, France (Alsace) 2, Iceland 2, Jamaica 2, Kazakhstan 2, Latvia 2, Macedonia 2, Moldova 2, Russia (Republic of Chuvashia) 2, Belarus 1, Costa Rica 1, Cuba 1, El Salvador 1, Marquesas Islands 1, Montenegro 1, Morocco 1, New Zealand 1, Russia (Republic of Bashkortostan) 1, Russia (Republic of Dagestan) 1, Russia (Republic of Tatarstan) 1, Saudi Arabia 1, Spain (Castile and León) 1, Spain (Valencia) 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.

I-L849
1,462 · 84.8% 4,100 years
I-BY351
185 · 10.7% 4,200 years

4 small sub-branches more without a page: 77 kits. On the branch itself, without a resolved sub-branch: 1 kit.

Surnames #

Surnames that testers entered at FTDNA, over the whole branch with its sub-branches: 116 distinct among 414 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%.

I-BY151: 398 samples. The common ancestor lived 4,400 years ago (3,800–5,100); the branch split off 4,400 years ago (3,800–5,100).