FTDNA mt-tree branch

K2b1a1

K2b1a1 is a branch of the FamilyTreeDNA mt tree with 275 kits that gave a country, counting all sub-branches. It is most common in these samples: Australia (0.8% of kits), Norway (0.5% of kits), Belgium (0.5% of kits). FTDNA Discover publishes no age for this branch; YFull's, when it has one, is below. YFull has 94 samples in this branch and dates its common foremother to 1,800 years ago.

275

kits in the branch

with a country given, including all sub-branches

131

on the branch itself

kits whose test did not resolve a sub-branch

sub-branches

1 with their own page, 0 without

1,800 years

age by YFull

common foremother (TMRCA); the branch split from its parent 2,500 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	52	18.9%	0.3%
Ireland	42	15.3%	0.4%
England	34	12.4%	0.3%
Germany	24	8.7%	0.2%
Norway	21	7.6%	0.5%
Sweden	21	7.6%	0.2%
Finland	16	5.8%	0.2%
Scotland	16	5.8%	0.3%
France	6	2.2%	0.1%
United Kingdom	6	2.2%	0.1%
United States (Native American)United States	6	2.2%	0.3%
Ukraine	4	1.5%	0.2%
Australia	3	1.1%	0.8%
Canada	3	1.1%	0.1%
Poland	3	1.1%	<0.1%
Portugal	3	1.1%	0.3%
Belgium	2	0.7%	0.5%
Czech Republic	2	0.7%	0.2%
Netherlands	2	0.7%	0.1%
Russian Federation	2	0.7%	<0.1%

6 more

The remaining countries and regions (6), 7 kits in total: Switzerland 2, Belarus 1, Denmark 1, Italy 1, Northern Ireland 1, Romania 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.

K2b1a1a

144 · 52.4%

On the branch itself, without a resolved sub-branch: 131 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%.

K2b1a1: 94 samples. The common foremother lived 1,800 years ago (1,700–1,900); the branch split off 2,500 years ago (2,400–2,600).