Haplogroup I-P109

What is Paternal Haplogroup I-P109?

Haplogroup I-P109, also known as Haplogroup I-M170 (Y Chromosome Consortium long-form label), is a genealogical group of lineages defined by unique genetic markers present on the Y-chromosome. Your paternal haplogroup, or that of your father if you do not have a Y-chromosome, paints a picture of your ancient origins and the migrations of your ancestors. Although your paternal haplogroup reflects just one of your many ancestral lineages, it carries information about that lineage over tens of thousands of years.

Haplogroup I-P109 is descended from haplogroup I-M170. Among 23andMe research participants, haplogroup I-P109 is commonly found among populations in the United Kingdom.

It's important to note that your haplogroup doesn't define your current ethnic identity; rather, it provides an insight into your deep ancestry on the paternal side.

Paternal Haplogroup Origins I-M170

Top Surnames with Haplogroup I-P109

For surnames with sufficient representation in the data, these percentages represent the frequency with which each surname is found in individuals exhibiting this genetic marker.

Last Name	Frequency
johnson	2.20%
anderson	1.50%
harris	1.20%
smith	1.20%
gentry	1.10%
nelson	1.00%
peterson	0.90%
wilson	0.80%
richardson	0.80%
carter	0.70%
wood	0.70%
rice	0.70%
carlson	0.70%
thornton	0.70%
jackson	0.60%
brown	0.60%
fowler	0.60%
allen	0.60%
ellis	0.60%
reynolds	0.60%

Haplogroup I-P109 is linked to many northern European men

If you have haplogroup I1a1b, your paternal line stems from a young branch of I-M253 called I-L22, which likely arose in the last 3,000 years. I-L22 is most common in Northern Europe, but a recent study found that this haplogroup was present in a significant portion of the Partecipanza population living in San Giovanni in Persiceto, Italy. The area of San Giovanni in Persiceto was involved in a migration period in 728 AD, when it became part of the Lombard kingdom, under King Aistulf. San Giovanni in Persiceto was only under Lombard rule for 48 years, after which the Lombards were defeated by King Charlemagne in 776 AD. There are several characteristics of San Giovanni in Persiceto that link it to other Lombard settlements. For instance, some research suggests San Giovanni in Persiceto was the seat of a Lombard Duke between 750 and 800 AD. It is possible that the Lombards who ruled over San Giovanni in Persiceto played an important role in the introduction and growth of haplogroup I-L22 in the region.

Italian Countryside