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Japan Y-DNA

FamilyTreeDNA holds for Japan: 527 kits with a Y-DNA result. On the paternal line the most common are O — 33%, CT — 28% and O-M324 — 18%. YFull has 59 samples for Y from the same area, and its mix of major branches is almost the same. The largest gap is C2: 7% on FTDNA against 3% on YFull.

527
kits
176 distinct finest branches
18%
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.
21%
Big Y
rough share of kits with a Big Y test, a full read of the Y chromosome. It is estimated from the branches where the region's kits sit, so it is an estimate, not a count.
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.RIJENGQTother
Level 1

Macro-haplogroups #

The first letter of the haplogroup, the broadest division of the Y tree. Percentages of all the region's kits.

O
283 · 53.7%
D
148 · 28.1%
C
72 · 13.7%
N
15 · 2.8%
Q
3 · 0.6%
R
3 · 0.6%
A
1 · 0.2%
K
1 · 0.2%
I
1 · 0.2%
Level 2

Major branches (clades) #

The major branches the region's kits belong to. Each kit is counted once, in the finest major branch its test reached. Asterisk: kits left on the branch itself because they fall into none of its major sub-branches. A branch counts as major when it holds at least 0.4% of all kits worldwide.

O-M175* O
175 · 33.2% 32k years
CT-M168* CT
149 · 28.3% 66k years
O-M324
93 · 17.6% 24k years
C-M217 C2
37 · 7.0% 34k years
C-M216* C
35 · 6.6% 48k years
O-M122* O2
15 · 2.8% 29k years
NO-M214* NO
12 · 2.3% 38k years
Q-M242* Q
3 · 0.6% 30k years
N-Tat*
2 · 0.4% 13k years
N-M178* N1a-M178
2 · 0.4% 14k years
R-M198* R1a-M198
1 · 0.2% 8,500 years
R-Z94* R1a-Z94
1 · 0.2% 4,600 years
I-S63*
1 · 0.2% 4,500 years
R-Z18* R1b-Z18
1 · 0.2% 4,300 years
Level 3

Key branches tree #

Tree of the main branches. Each branch counts every kit in it and in its sub-branches; sub-branches are indented. Branches of at least 1% of the sample are shown; pass-through branches with no side branches are skipped. Age is how many years ago the branch's common ancestor lived (TMRCA), from FTDNA Discover.

O O-M175
283 · 53.7% 32k years
└ O1b O-M268
118 · 22.4% 29k years
└ M95 O-M95
6 · 1.1% 12k years
└ O2 O-M122
108 · 20.5% 29k years
└ M134 O-M134
53 · 10.1% 17k years
D-M174 D-M174
148 · 28.1% 47k years
C C-M216
72 · 13.7% 48k years
└ C2 C-M217
37 · 7.0% 34k years
N N-M231
15 · 2.8% 23k 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.

527
FTDNA
kits
59
YFull
samples

Macro-haplogroups

FTDNAYFull
FTDNA · YFull · Δ
O
53.7% · 45.8%−7.9
D
28.1% · 39.0%+10.9
C
13.7% · 6.8%−6.9
N
2.8% · 6.8%+3.9
R
0.6% · 1.7%+1.1
Q
0.6% · 0.0%−0.6
A
0.2% · 0.0%−0.2
K
0.2% · 0.0%−0.2
I
0.2% · 0.0%−0.2

Major branches (clades)

FTDNAYFull
FTDNA · YFull · Δ
CT-M168* CT
28.3% · 39.0%+10.7
O-M175* O
33.2% · 30.5%−2.7
O-M324
17.6% · 15.3%−2.4
C-M217 C2
7.0% · 3.4%−3.6
NO-M214* NO
2.3% · 6.8%+4.5
C-M216* C
6.6% · 3.4%−3.3
O-M122* O2
2.8% · 0.0%−2.8
R-BY12480*
0.0% · 1.7%+1.7
Q-M242* Q
0.6% · 0.0%−0.6
N-Tat*
0.4% · 0.0%−0.4
N-M178* N1a-M178
0.4% · 0.0%−0.4
R-M198* R1a-M198
0.2% · 0.0%−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.