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FTDNA mt-tree branch

B4a

B4a is a branch of the FamilyTreeDNA mt tree with 236 kits that gave a country, counting all sub-branches. It is most common in these samples: New Zealand (44% of kits), Philippines (11% of kits), Korea, Republic of (5.3% of kits). The branch's common foremother lived about 24k years ago: the FTDNA Discover estimate runs from 22k to 27k years ago. YFull has 2,432 samples in this branch and dates its common foremother to 30k years ago.

236
kits in the branch
with a country given, including all sub-branches
3
on the branch itself
kits whose test did not resolve a sub-branch
5
sub-branches
1 with their own page, 4 without
24k years
age by Discover
the common foremother lived 22k to 27k years ago
30k 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
New Zealand 46 44%
New Zealand (Māori)New Zealand 27 ·
United States 27 0.1%
Philippines 21 11%
United States (Native American)United States 19 0.8%
United States (Kānaka Maoli)United States 16 ·
Samoa 8 ·
Korea, Republic of 7 5.3%
China 6 1.9%
French Polynesia 5 ·
Madagascar 5 ·
Marshall Islands 4 ·
South Africa 4 1.5%
Austral Islands 3 ·
England 3 <0.1%
Fiji 3 ·
Japan 3 1.0%
United Kingdom 3 <0.1%
American Samoa 2 ·
India 2 0.5%
19 more

The remaining countries and regions (19), 22 kits in total: Ireland 2, Spain 2, Tonga 2, Germany 1, Guam 1, Indonesia 1, Jamaica 1, Malaysia 1, Micronesia 1, Northern Mariana Islands 1, Oman 1, Rapa Nui (Easter Island) 1, Reunion 1, Russian Federation 1, Scotland 1, Solomon Islands 1, Tuvalu 1, Vanuatu 1, Vietnam 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.

B4a1
226 · 95.8%

4 small sub-branches more without a page: 7 kits. On the branch itself, without a resolved sub-branch: 3 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%.

B4a: 2,432 samples. The common foremother lived 30k years ago (25k–35k); the branch split off 20k years ago (20k–20k).

In the site's findings #