FTDNA mt-tree branch

I4a

Equivalent branches, the same kits: I4 (570 kits)

I4a is a branch of the FamilyTreeDNA mt tree with 570 kits that gave a country, counting all sub-branches. It is most common in these samples: Iceland (4.4% of kits), Croatia (1.3% of kits), Denmark (1.3% of kits). The branch's common foremother lived about 5,000 years ago: the FTDNA Discover estimate runs from 4,900 to 5,000 years ago. YFull has 233 samples in this branch and dates its common foremother to 8,800 years ago.

570

kits in the branch

with a country given, including all sub-branches

401

on the branch itself

kits whose test did not resolve a sub-branch

sub-branches

1 with their own page, 2 without

5,000 years

age by Discover

the common foremother lived 4,900 to 5,000 years ago

8,800 years

age by YFull

common foremother (TMRCA); the branch split from its parent 20k 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	111	19.5%	0.6%
Sweden	93	16.3%	1.0%
England	71	12.5%	0.6%
Ireland	62	10.9%	0.6%
Germany	39	6.8%	0.4%
United Kingdom	28	4.9%	0.6%
Scotland	25	4.4%	0.5%
Denmark	15	2.6%	1.3%
Finland	12	2.1%	0.2%
Norway	10	1.8%	0.3%
France	9	1.6%	0.2%
Netherlands	9	1.6%	0.6%
Poland	9	1.6%	0.2%
United States (Native American)United States	9	1.6%	0.4%
Wales	7	1.2%	0.7%
Canada	6	1.1%	0.3%
Switzerland	5	0.9%	0.4%
Belgium	4	0.7%	1.0%
Croatia	4	0.7%	1.3%
Portugal	4	0.7%	0.4%

25 more

The remaining countries and regions (25), 38 kits in total: Austria 3, Iceland 3, Australia 2, Czech Republic 2, Hungary 2, Italy 2, Russian Federation 2, Spain 2, Turkey 2, Ukraine 2, Uzbekistan 2, Afghanistan 1, Azerbaijan 1, Barbados 1, Brazil 1, Georgia (Republic of Abkhazia) 1, Guernsey 1, Iran 1, Israel 1, Mexico 1, Morocco 1, Northern Ireland 1, Romania 1, Serbia 1, South Africa 1.

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 foremother lived.

I4a1

140 · 24.6%

2 small sub-branches more without a page: 29 kits. On the branch itself, without a resolved sub-branch: 401 kits.

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%.

I4: 233 samples. The common foremother lived 8,800 years ago (6,000–13k); the branch split off 20k years ago (20k–20k).

In the site's findings #

Distinctive branch for Denmark: 1.3% of kits, 3.2 times the world share