| Haplogroup I is found almost exclusively in Europe where it is represented
in about 20% of the population, though subclade I2 is decidedly less common
than its sister clade, I1. It's difficult to generalize about I2
because it contains a number of geographically limited subgroups.
One group of I2a is concentrated in the Balkans and is called "Dinaric"
(for a mountain range there, the Dinaric Alps), while another group is
found around the Baltic and North Sea coastal areas, another in the British
Isles, and another in Sardinia and Iberia. The root clade of I2b
is uncommon, with a probable origin from an Iberian glacial refugium from
which it spread widely in western Europe. The main variety of I2b,
dubbed "Continental," is most common in northwestern Europe, southern Scandinavia,
and Britain. Another group, "Isles," is almost exclusive to the British
Isles with a concentration in Scotland.
Unlike Haplogroup I1, which is universally 8 at marker DYS455, Haplogroup
I2 is usually 11 at this marker (sometimes 10 and rarely 9). |
So far, eight members of Danish Demes are Haplogroup I2.
| Subclade |
Most
Down-
stream
SNP* |
D
e
m
e |
Surname |
Earliest Known Patrilineal
Ancestor |
n |
| I2a2-Dinaric |
M423 |
1 |
JØRGENSEN |
of Ålborg Amt, DK |
1 |
| I2b1-Root2 |
M223 |
2 |
LARSEN |
Lars Hansen of Dalby, Krogstrup Sogn,
Horns Herred, Frederiksborg Amt, DK |
1 |
| I2b1-Continental-1 |
M223 |
3 |
ANDERSEN |
Jakob Andersen of Toksværd,
Toksværd Sogn, Hammer Herred, Præstø Amt, DK |
1 |
| M223 |
4 |
ERIKSEN |
Jørgen ERIKSEN of Århus,
Århus Sogn, Hasle Herred, Århus Amt, DK |
1 |
| M223 |
5 |
RASMUSSEN |
Rasmus Jensen of Skanderborg, DK |
1 |
| I2b1-Continental-2a |
M223 |
6 |
HAMMER |
Niels HAMMER of Viborg Amt, DK |
1 |
| M223 |
7 |
CHRISTENSEN |
Nels Peter CHRISTENSEN — immigrant from
Denmark to Michigan |
1 |
| M223 |
8 |
HANSEN |
Henrick of Agernæs, Krogsbølle
Sogn, Skam Herred, Odense Amt, DK |
1 |
| *Greyed SNPs have merely been deduced; boldfaced
SNPs have actually been tested. |
|
| Ken Nordtvedt is the guru researching Hg I subclades (see his Excel
spreadsheet; modals below are his). For a table showing modal
haplotypes for Hg I varieties
in FamilyTreeDNA marker order, please
also see my HTML
transcription of Nordtvedt's spreadsheet. Varieties were determined
using Jim Cullen's
Haplo-I
Subclade Predictor. |
Y-DNA
Haplogroup I2 SNPs and Subclades
| Nordtvedt's
Chart |
ISOGG Chart |
FTDNA
Chart |
| Subclade |
Defining SNPs |
Subclade |
Defining SNPs |
Subclade |
Defining SNPs |
| I |
M170 M258 P19 P38 rs17249889 |
I |
M170 M258 P19 P38 P212 U179 |
I |
M170 M258 P19 P38 P212 U179 |
| |
| I2 |
all of I and M438=P215=S31
rs35547782 S150=L35? S153=L37? |
I2 |
all of I and L68 M438=P215=S31 |
I2 |
all of I and P215 |
| |
| I2a |
all of I2 and P37.2 |
I2a |
all of I2 and P37.2 |
I2a |
all of I2 and P37.2 |
| I2a1 |
all of I2a and M26 |
I2a1 |
all of I2a and M26 |
I2a1 |
all of I2a and M26 |
| I2a1a |
all of I2a1 and M161 |
I2a1a |
all of I2a1 and M161 |
I2a1a |
all of I2a1 and M161 |
| I2a2 |
all of I2a and M423 |
I2a2 |
all of I2a and M423 |
I2a2 |
all of I2a and M423 |
| I2a2a |
all of I2a2 and rs9786274=T |
I2a2a |
all of I2a2 and P41.2=M359.2 |
I2a2a |
all of I2a2 and P41.2 |
| I2a2a1 |
all of I2a2a and M359=P41.2 |
|
|
|
|
| |
|
I2a2b |
all of I2a2 and L69.2(=T)=S163.2 |
|
|
| |
| I2b |
all of I2 and P214=S33 P216=S30
P217=S23 P218=S32 |
I2b |
all of I2 and M436=P214=S33
P216=S30 P217=S23 P218=S32 |
I2b |
all of I2 and P214 P216 P217 P218 |
| I2b1 |
all of I2b and L34=S151 L36=S152
L59=S157 M223 P219=S24 P220=S119
P221=S120 P222=S118 P223=S117 |
I2b1 |
all of I2b and M223 P219=S24 P220=S119
P221=S120 P222=U250=S118 P223=S117 |
I2b1 |
all of I2b and M223 P219-P223 |
| I2b1a |
all of I2b1 and M284 |
I2b1a |
all of I2b1 and M284 |
I2b1a |
all of I2b1 and M284 |
| |
|
I2b1a1 |
all of I2b1a and L126=S165 L137=166 |
|
|
| |
|
I2b1b |
all of I2b1 and M379 |
I2b1b |
all of I2b1 and M379 |
| I2b1c |
all of I2b1 and P78 |
I2b1c |
all of I2b1 and P78 |
I2b1c |
all of I2b1 and P78 |
| I2b1d |
all of I2b1 and P95 |
I2b1d |
all of I2b1 and P95 |
I2b1d |
all of I21b and P95 |
| I2b2 |
all of I2b and L38=S154 L39=S155
L40=S156 L65=S159 |
I2b2 |
all of I2b and L38=S154
L39=S155 L40=S156 L65=S159 |
I2b2 |
all of I2b and L38 L39 L40 |
|
|