View Full Version : Any I-M26 (I2a1a1 in Isogg 2014)?

12-23-2014, 11:50 AM
This clade is often claimed to be "Sardinian", given its huge percentage among Sardinian males (circa 38%).
I think it was very common in western Europe until R1b invasion, from Portugal to British isles.
Its percentage among Basques reaches 10-15%, and I know some british people with I-M26.
What do you think?

04-25-2015, 04:54 AM
I think the clade clearly existed in the Western Mediterranean. If I remember correctly, Nordtvedt once half-jokingly referred to it "Tyrrhenian Modal Haplogroup." Its distribution was certain centered around that sea. Western Italy, Southern France, and Spain.

There are lots of theories on it. You should note however that it is very poorly studied. Maybe this is due to a lack of commercial interest and raw numbers, compared to other Hgs.

There are very significant amounts in "Archaic" mainland Italy. It gets close to 10% in Samnium! http://snplogic.blogspot.com/2014/03/corrected-study-confirms-even-more-i.html

Some theorize it is like that one U5 mtDNA subclade, meaning a marker from a small tribe of people who weathered the LGM in an Italian refugium.

But of course to test that theory you would need to know whether the M26 in the isolated Italian mountains (Molise, Campania, Cozenza, Basilicata, Abruzzo, etc.) was ancestral or derived from the Sardinian (and Iberian) M26.

There are also those who think it was a Cardial culture, which then developed a foothold in the Western Mediterranean, spreading M26 through a second expansion during Megalithic times through the trade of obsidian or metalworking materials. http://i-m26.blogspot.com/

05-16-2015, 05:11 AM
This clade is often claimed to be "Sardinian", given its huge percentage among Sardinian males (circa 38%).
I think it was very common in western Europe until R1b invasion, from Portugal to British isles.
Its percentage among Basques reaches 10-15%, and I know some british people with I-M26.
What do you think?

Can you tell me something about your MTDNA m1a3a ?

12-06-2016, 01:30 AM
I am I2a1a1 I-M26. My paternal lineage up to 1600 is from the south west of France in the Pyreneans mountains in Bearn. I am just beginning.

12-09-2016, 10:50 PM
I am I2a1a1 I-M26. My paternal lineage up to 1600 is from the south west of France in the Pyreneans mountains in Bearn. I am just beginning.

you can see information in http://www.anthrogenica.com/showthread.php?9264-Population-history-of-the-Sardinian-people-inferred-from-whole-genome-sequencing/page2

"The French Basques get 20/163 or 12.27% I-M26 with frequencies varying from 6.81% (Labourd ZMI 3/44) to 16.98% (Soule SOU 9/53). Finally the neighboring French Pyrennean populations (Bigorre+Bearn+Chalosse) which where Aquitanians in the Roman times display a frequency of 9/158 or 5.69% I-M26."

05-31-2017, 07:10 AM
My brother is also I M26, from West Cheshire an area of England adjacent to north Wales just south of Liverpool and Manchester geographically

06-09-2017, 08:46 PM
Can you tell me something about your MTDNA m1a3a ?

It's sicilian.
M1a3a seems to be somewhat west mediterranean, in both european and african coasts.
I know other M1a3a from Sicily, Tunisia, Algeria, Morocco, Iberia and especially Azores.
Very westerner.

07-07-2017, 11:04 PM
I'm an Englishman, and I am I-M26 .

12-18-2019, 04:34 AM
Iberian sardinian...Im studing to learn more about this

I am I2a1a1 I-M26. My paternal lineage up to 1600 is from the south west of France in the Pyreneans mountains in Bearn. I am just beginning.

04-23-2021, 11:08 AM
It’s 7 years later, but still.

I am myself M26+ L160+ PF4088+ and my paternal ancestry is from Germany.

I’ll just share in no particular order some of the knowledge about this Haplogroup that I acquired since I got my M26+ results back in 2012.

The oldest of the 108 SNPs that define the M26 Haplogroup dates back 18400 years during the time of the Würm glaciation in Europe. Only a single M26 lineage from that time has direct male line descendants alive today. Right during the end of the last glaciation period (Younger Dryas) 11800 years ago the M26 Haplogroup splits the first time. One of these lines is the small and rare I-L1274 branch, found in Sardinia, Germany, the Czech Republic and Spain. The other one is the large Y3992 branch, which in turn split 8500 years ago into the very uncommon I-BY189905 branch only found in Spain and Northern France and the large Z2049 branch which is the ancestor of >95% of I-M26 men alive today.
The most likely point of origin of Z2049 is Southern France, but this is really speculation still.

The nickname Sardinian is slightly misleading since most of the Sardinian M26 is the result of the massive founder effect of PF4188 only 4000 years ago. Making it actually even younger than clade expansions of R1b.
Years ago I always believed the Sardinian M26 came from Remedello since we know that Remedello was M26 too. But now we know that Remedello is under I-PF6947 a distant cousin branch and the Sardinian I-M26 likely came from France and moved very quickly through Italy along the coast. Its closest sister clade has so far only been found in the British Isles.

To me there seem to be 4 distinct more common clades of M26 which each likely have a different story and expansion (Some of this is of course speculation):

Two of these are under Y11222:
We see M26+ L160- samples in the Baden Culture of modern day Hungary. These lines are very likely Y11222. One of the most interesting of these M26+ L160- samples is I2741, a fully farmer DNA man buried in full Bell Beaker fashion with rich grave goods. So obviously Bell Beakers accepted Locals in their ranks and these people could reach a high status.
We also see M26+ L160- lineages in Spain. In MLN Catalonia and El Trocs and much later in a Celtiberian from the 3rd Century AD.

This clade was found in at least 2 of the 3 samples (the 3rd is Y3992*, but likely PF6947 too) of the Remedello culture. Remedello was earlier thought to be a clearly Indo European group, but this has no been disproven thanks to DNA. They had copper weapons and buried their dead according to eastern customs.
Interestingly most PF6947 men are nowadays found in Ireland.

A subclade of this line has been found in the Michelsberg Culture of western Germany dating back to around 3200 BC. This culture originated in NE France from the Chasseen culture which makes it likely (especially considering the spread of M26) that BY40578 came from the Paris Basin. The Michelsberg culture spread very rapidly and displaced the LBK culture. Since there’s no continuity between the two, archaeologist theorize that this was likely an aggressive expansion.
Considering the modern day spread of this subclade around France it seems as though a lot of BY45078 clades actually stayed in France.

The other two are under L160:
We find the oldest I-L160 sample in 3500 BC in the Dolmen de Ansiao in Portugal and more I-L160 samples slightly later around the river valleys of central Portugal. These people had been the last Hunter Gatherers in Iberia and they already buried their dead in collective graves covered with stone slabs. Their lifestyle only came to an end around 4750 BC when Farmers finally reached the westernmost part of Europe. It looks like both groups seemed to have learned from each other and the burial rites of the farmers changed towards the HG model. The first proper passage grave megaliths were erected around 4700-4500 BC.

This clade has been found as late as the Bell Beaker period in modern day Lisbon. So some branches seemed to have stayed in Portugal and integrated with the incoming Bell Beakers. Smaller branches are found in France and England and the largest subbranch Y21970 has a very mediterranean distribution. The PH1671 subclade with a TMRCA around 100 AD found in Spain, Italy, France, Greece and SW Germany might have been spread by the Romans.

This is the largest branch of M26, probably 60-65% of M26 men fall under PF4088. This clade is very widespread from Scotland to Malta and from Portugal to Germany. I think this was one of the main Megalithic haplogroups of continental western Europe. The only SNP tested ancient samples under PF4088 have so far been found in Punic Sardinia (where the PF4088>PF4188 subclade alone makes up 30% of the Islands male population) and in Late Antiquity Rome. There is also an old sample from the Dolmen de la Pierre Fritte in Northern France whose STRs are closest to PF4088 clades.
This clade spread rapidly in the 4th Millennium BC and clearly corresponds both geographically and chronographically with the spread of Megaliths.

M26 percentage in various countries:

France (1.5%)
Alsace: 1.23%
Auvergne: 1.12%
Bretagne: 0.87%
Paris: 1.10%
Midi-Pyrenees: 1.49%
Nord Pas de Calais: 4.29%
Provence Cote de Azur: 2.22%
Bearn: 7.7%
Lyon: 1.0%
Normandy: 2.4%
Corte,Corsica: 3.7%
Ajaccio,Corsica: 4.7%

Spain (4.5%)
Andalusia: 2.7-9.5%
Aragon: 14.5%
Asturias: 2-5%
Basque 5%
Cantabria: 2-3%
Castile-Leon: 1.6-2%
Catalonia: 2.7-3.5%
Estremadura: 4%
Galicia: 1.9-2.5%
Valencia: 1.2-5.5%
Canary Islands: 3.7%
Madrid: 1.3%
Saragossa: 2.5%
Barcelona: 2.7%

Portugal (2%)
Braga: 2%
Porto: 0.9%
Braganca: 4%
Villa Real: 5.1%
Aveiro: 1.5%
Leiria: 2.9%
Santarem: 12.5%
Evora: 3.5%
Beja: 12.5%
Madeira: 0.7%

Italy (2.5%)
Genova: 0.6%
La Spezia: 0.8%
Sicily: 1.4-3%
Trapani: 12.8%
Sardinia: 38%
Nuoro: 50%
Basilicata: 6.5%
Pisa: 2.6%
Arezzo: 1.6%
Pantellaria: 4.8%
Umbria: 0-2%
Latium: 1.0%
Lombardy: 0.5-1%
Calabria: 1.1%
Tuscany: 1.5%
Marches: 3%
Liguria: 2%
Apulia: 2.5%

British Isles (0.6%)
Rush: 2.6%
Ulster: 0.5%
Castlerea: 2.3%
Welsh: 0.5%
Haverford: 1.7%
English: 0.7%
Cornwall: 1.5%
Cumbria: 1%
East Midlands: 1%
Home Counties: 1%
Midhurst: 2.5%
Chippenham: 2.0%
Scottish: 0.4%
Orkney Islands: 0.8%
Channel Islands: 3.1%

Germany (0.3%)
Hamburg: 0.72%
Baden-Württemberg: 0.67%
Berlin: 0.36%
Sachsen: 0.23%

Limburg: 2.0%

South: 0.6-0.9%

Lausanne: 0.9%
Swiss French: 0.77%

Dalian: 0.48%

Malta: 10%

Belgium: 0.9%

Czech Republic: 1.2%

South Americas: 0-6%
Central America: 0-4%
North America: 0-4%

Traces (Project Members, public trees)
Norway, Iceland, Finland, Poland, Russia, Ukraine, Bulgaria, Serbia, Greece, Austria, Hungary, Algeria, Libya

05-03-2021, 05:40 PM
Map of all ancient I-M26 samples to date:

Distribution map: