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FTDNA Y-tree branch

I-P37 I2a

I-P37 is a branch of the FamilyTreeDNA Y tree with 6,041 kits that gave a country, counting all sub-branches. It is most common in these samples: Bosnia and Herzegovina (36% of kits), Croatia (29% of kits), Serbia (25% of kits). The branch's common ancestor lived about 20k years ago: the FTDNA Discover estimate runs from 18k to 23k years ago. YFull has 1,817 samples in this branch and dates its common ancestor to 19k years ago.

6,041
kits in the branch
with a country given, including all sub-branches
715
on the branch itself
kits whose test did not resolve a sub-branch
18%
Big Y
share of kits with a Big Y test among all kits of the branch, sub-branches included
2
sub-branches
2 with their own page, 0 without
20k years
age by Discover
the common ancestor lived 18k to 23k years ago
19k years
age by YFull
common ancestor (TMRCA); the branch split from its parent 21k 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 552 2.0%
Ireland 518 2.3%
Ukraine 512 12%
United States 467 1.5%
Poland 417 5.7%
Germany 336 1.9%
Russian Federation 328 4.6%
Scotland 248 1.7%
United Kingdom 183 1.9%
Hungary 164 8.6%
Bulgaria 162 18%
Croatia 150 29%
Czech Republic 135 5.7%
Spain 134 3.4%
Bosnia and Herzegovina 130 36%
France 129 2.0%
Italy 110 1.8%
Slovakia 103 11%
Greece 102 7.7%
Belarus 93 5.4%
106 more

The remaining countries and regions (106), 1,068 kits in total: Serbia 88, Romania 82, Slovenia 63, Sweden 63, Austria 59, Mexico 59, Montenegro 42, Wales 41, Lithuania 39, Portugal 39, Switzerland 36, Canada 32, Northern Ireland 31, Macedonia 30, Turkey 23, Finland 22, Denmark 18, Albania 17, Brazil 17, Russia (Republic of Chuvashia) 17, Puerto Rico 15, Moldova 13, Netherlands 13, United States (Native American) 13, Kosovo 11, Norway 11, Kazakhstan 8, Cuba 7, Latvia 7, Australia 6, Belgium 6, Chile 6, Estonia 6, Russia (Republic of Mordovia) 6, Colombia 5, Isle of Man 5, Belgium (Flanders) 4, Dominican Republic 4, El Salvador 4, Russia (Republic of Dagestan) 4, Armenia 3, Cyprus 3, England (Cornish) 3, Israel 3, Russia (Republic of Adygea) 3, Russia (Republic of Bashkortostan) 3, Russia (Republic of Karelia) 3, Russia (Republic of Tatarstan) 3, Tunisia 3, Argentina 2, Azerbaijan 2, Egypt 2, India 2, Malta 2, Philippines 2, South Africa 2, Spain (Andalusia) 2, Spain (Valencia) 2, Syrian Arab Republic 2, Uruguay 2, Uzbekistan 2, Afghanistan 1, Algeria 1, Antigua and Barbuda 1, Aruba 1, Bahamas 1, Barbados 1, Bermuda 1, Bolivia 1, British Virgin Islands 1, Canada (First Nations) 1, Cape Verde 1, Costa Rica 1, Curaçao 1, Ecuador 1, France (Alsace) 1, France (Corsica) 1, Georgia (Republic of Abkhazia) 1, Ghana 1, Greenland 1, Guatemala 1, Guernsey 1, Indonesia 1, Iran 1, Iraq 1, Italy (Friuli-Venezia Giulia) 1, Italy (Sicily) 1, Jamaica 1, Jordan 1, Lebanon 1, Libya 1, New Zealand 1, Nicaragua 1, Palestinian Territory 1, Paraguay 1, Russia (Republic of Chechnya) 1, Russia (Republic of Kabardino-Balkaria) 1, Russia (Republic of Udmurtia) 1, Saudi Arabia 1, Spain (Aragon) 1, Spain (Asturias) 1, Spain (Balearic Islands) 1, Spain (Basque) 1, Spain (Castile and León) 1, Spain (Madrid) 1, Sudan 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-M423
3,791 · 62.8% 17k years
I-CTS595
1,535 · 25.4% 20k years

On the branch itself, without a resolved sub-branch: 715 kits.

Surnames #

Surnames that testers entered at FTDNA, over the whole branch with its sub-branches: 291 distinct among 1,094 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-P37: 1,817 samples. The common ancestor lived 19k years ago (17k–20k); the branch split off 21k years ago (20k–23k).

In the site's findings #