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United Kingdom mtDNA

FamilyTreeDNA holds for United Kingdom: 4,459 kits with mtDNA. On the maternal line the most common are J1c — 7%, K1a — 5% and T2b — 5%. YFull has 42 samples for mt from the same area, and its mix of major branches is noticeably different. The largest gap is U5a: 4% on FTDNA against 0% on YFull.

4,459
kits
1,154 distinct finest branches
42%
on leaves
share of kits that reached the finest branch of the tree. The rest stopped at a broad branch: their test was not detailed enough.
Each colour is one of the eight most common macro-haplogroups worldwide (the first letter of the haplogroup, such as R or J). Everything else is grey.HUTJKVLIother
Level 1

Macro-haplogroups #

The opening letters of the mtDNA haplogroup (H, U, HV), the broadest division of the mt tree. Percentages of all the region's kits.

H
1,998 · 44.8%
U
613 · 13.7%
J
450 · 10.1%
T
436 · 9.8%
K
382 · 8.6%
V
141 · 3.2%
I
140 · 3.1%
HV
80 · 1.8%
W
77 · 1.7%
X
67 · 1.5%
L
22 · 0.5%
M
12 · 0.3%
A
11 · 0.2%
N
10 · 0.2%
R
10 · 0.2%
B
5 · 0.1%
Level 2

Branches #

mt-tree branches shortened to three parts: letters, a number and one letter, such as U5a, H13a, J2b.

J1c
310 · 7.0% 13k years
K1a
215 · 4.8% 11k years
T2b
213 · 4.8% 8,500 years
U5b
197 · 4.4% 22k years
H1a
191 · 4.3% 5,800 years
U5a
191 · 4.3% 21k years
H1b
131 · 2.9% 5,100 years
H1c
131 · 2.9% 5,300 years
H2a
121 · 2.7% 8,200 years
H5a
113 · 2.5% 7,800 years
H1
107 · 2.4% 7,200 years
T1a
100 · 2.2% 13k years
H6a
99 · 2.2% 7,900 years
H
70 · 1.6%
H4a
63 · 1.4% 9,500 years
H3a
60 · 1.3%
K1c
59 · 1.3% 16k years
H3
54 · 1.2% 6,700 years
U4a
54 · 1.2% 8,900 years
K2a
54 · 1.2% 14k years
YFull

The same country on YFull #

The same country at the second company, YFull. Its samples are placed on the FTDNA tree by shared mutations, so the branches are comparable. FTDNA share on the left, YFull on the right, then the difference in percentage points. Republics and other sub-regions are taken out of the country, as at FTDNA. Starred branches are nearly empty at YFull: every test there is whole-genome and reaches the fine branches. Only YFull customers (YF number) are counted, no ancient DNA. YFull data of 2026-09-29.

4,459
FTDNA
kits
42
YFull
samples

Macro-haplogroups

FTDNAYFull
FTDNA · YFull · Δ
H
44.8% · 35.7%−9.1
U
13.7% · 9.5%−4.2
J
10.1% · 11.9%+1.8
T
9.8% · 2.4%−7.4
V
3.2% · 9.5%+6.4
I
3.1% · 9.5%+6.4
K
8.6% · 4.8%−3.8
HV
1.8% · 7.1%+5.3
X
1.5% · 4.8%+3.3
W
1.7% · 2.4%+0.7
R
0.2% · 2.4%+2.2
L
0.5% · 0.0%−0.5

Branches

FTDNAYFull
FTDNA · YFull · Δ
J1c
7.0% · 7.1%+0.2
K1a
4.8% · 4.8%−0.1
T2b
4.8% · 2.4%−2.4
H1b
2.9% · 4.8%+1.8
V
0.9% · 4.8%+3.9
I4a
0.6% · 4.8%+4.2
U5b
4.4% · 2.4%−2
H1a
4.3% · 2.4%−1.9
U5a
4.3% · 0.0%−4.3
H1c
2.9% · 0.0%−2.9
H2a
2.7% · 2.4%−0.3
H5a
2.5% · 2.4%−0.2

Distinctive branches #

Branches found here far more often than worldwide: their share is more than 3× the world share. The multiplier is in brackets. Branches of at least 10 kits are included.

Most similar countries #

Countries whose mix of major branches looks most like this one. The number is similarity: 100% is the same mix, lower means less in common. Computed only for countries with 100+ kits.