Haplogroup I1 is the most common type of haplogroup I in northern Europe. It is found mostly in Scandinavia and Finland, where it typically represent over 35% of the Y chromosomes. Associated with the Norse ethnicity, I1 is found in all places invaded by ancient Germanic tribes and the Vikings.

Haplogroup I-M253, also known as I1, is a Y chromosome haplogroup. The genetic markers confirmed as identifying I-M253 are the SNPs M253,M307.2/P203.2, M450/S109, P30, P40, L64, L75, L80, L81, L118, L121/S62, L123, L124/S64, L125/S65, L157.1, L186, and L187. [7] . It is a primary branch of Haplogroup I-M170 (I*).

The Y chromosome is passed from father to son remaining mostly unaltered across generations, except for small traceable changes in DNA. By tracking these changes, we constructed a family tree of humankind where all male lineages trace back to a single common ancestor who lived hundreds of thousands of years ago.

2022年7月24日 · Haplogroup I1, also known as I-M253, has puzzled experts and amateurs alike for a long time. Why was it so rare prior to the Nordic Bronze Age? How did it become the dominant Y-DNA haplogroup in Scandinavia? Is it native to Scandinavia, or did it get there far later than most would assume?

2015年4月2日 · Haplogroup I1 (Y-DNA) represents one of the two branches of Haplogroup I (Y-DNA) as defined by the International Society of Genetic Genealogy Y-DNA Haplogroup Tree 2010 . Subclade I1 (Haplogroup I1 (Y-DNA)) is found mostly in Northern Europe, while subclade I2 (Haplogroup I2 (Y-DNA)) is the most frequent haplogroup in Eastern Europe and the ...

It is possible that various small groups of I1 men joined the remnants of Mesolithic Fennoscandians in northern Scandinavia and modern Finland, and perhaps thanks to superior technology asserted their dominance and became tribal chietfains, quickly spreading their Y-DNA and replacing Mesolithic I2 lineages by I1.

Haplogroup I1 has an estimated time to most recent common ancestor around 4000 to 5000 years, and the haplogroup is commonly denoted as I-M253, where M253 being one of the 300 SNP mutations defining the haplogroup.

2019年10月19日 · Y-DNA Haplogroup I represents one of two major European Y chromosome haplogroups (the other major haplogroup is Y Haplogroup R). Unlike R, clade I is widespread in Europe and is virtually absent elsewhere.

2016年7月11日 · I1-M253 et al has highest frequency in Scandinavia, Iceland, and northwest Europe. In Britain, haplogroup I1-M253 et al is often used as a marker for "invaders," Viking or Anglo-Saxon. The I1b-M227 subclade is concentrated in eastern Europe and the Balkans and appears to have arisen in the last one thousand to five thousand years.

Find out which of the I1^ branches and 64 countries that you belong to with the most comprehensive mtDNA test! Every new mtFull Sequence test result helps improve the tree structure and age estimates. A popular genealogy strategy is to expand your part of the tree by encouraging distant relatives to test.