FTDNA mt-tree branch

J2b1a

J2b1a is a branch of the FamilyTreeDNA mt tree with 584 kits that gave a country, counting all sub-branches. It is most common in these samples: Malta (3.7% of kits), Luxembourg (2.2% of kits), Italy (Sicily) (1.5% of kits). FTDNA Discover publishes no age for this branch; YFull's, when it has one, is below. YFull has 444 samples in this branch and dates its common foremother to 6,000 years ago.

584

kits in the branch

with a country given, including all sub-branches

302

on the branch itself

kits whose test did not resolve a sub-branch

sub-branches

2 with their own page, 4 without

6,000 years

age by YFull

common foremother (TMRCA); the branch split from its parent 8,500 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	101	17.3%	0.5%
England	64	11.0%	0.5%
Germany	57	9.8%	0.5%
Ireland	56	9.6%	0.6%
Sweden	39	6.7%	0.4%
Norway	32	5.5%	0.8%
United Kingdom	31	5.3%	0.7%
France	28	4.8%	0.6%
Scotland	26	4.5%	0.6%
Canada	23	3.9%	1.1%
Poland	15	2.6%	0.3%
Finland	14	2.4%	0.2%
Italy	14	2.4%	0.5%
United States (Native American)United States	13	2.2%	0.6%
Portugal	11	1.9%	1.2%
Netherlands	8	1.4%	0.6%
Russian Federation	6	1.0%	0.2%
Spain	6	1.0%	0.4%
Switzerland	4	0.7%	0.3%
Denmark	3	0.5%	0.3%

21 more

The remaining countries and regions (21), 33 kits in total: Latvia 3, Australia 2, Belgium 2, Estonia 2, Hungary 2, Luxembourg 2, Malta 2, Mexico 2, Slovenia 2, Ukraine 2, Uzbekistan 2, Barbados 1, Cuba 1, Czech Republic 1, England (Cornish) 1, Greece 1, Iran 1, Italy (Sicily) 1, Lithuania 1, Serbia 1, Spain (Catalonia) 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.

J2b1a1

93 · 15.9%

J2b1a2

82 · 14.0%

4 small sub-branches more without a page: 107 kits. On the branch itself, without a resolved sub-branch: 302 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%.

J2b1a: 444 samples. The common foremother lived 6,000 years ago (5,600–6,300); the branch split off 8,500 years ago (8,000–9,000).