Haplogroup O-CTS1215

What is Paternal Haplogroup O-CTS1215?

Haplogroup O-CTS1215, also known as Haplogroup O-M1359 (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 O-CTS1215 is descended from haplogroup O-M1359. Among 23andMe research participants, haplogroup O-CTS1215 is commonly found among populations in South Korea and Japan.

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.

O-CTS1215 Migration MapPaternal Haplogroup Origins O-M1359

Top Surnames with Haplogroup O-CTS1215

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 NameFrequency
kim13.80%
lee9.00%
cho6.90%
choi4.20%
kwak3.70%
kang3.20%

Haplogroup O-CTS1215 is linked to the Yayoi

Haplogroup O1b2a, a branch of haplogroup O, is closely related to several haplogroups that are commonly found in Japan. Haplogroup O is closely associated with Kyushu, Japan's third largest island, and makes up over half of all men in Japan. Although haplogroup O is prevalent in Japan, it likely only entered Japan during the Yayoi expansion about 2,300 years ago. During the Yayoi expansion, people entering from the Korean Peninsula brought wet rice agriculture, weaving technology, and metalworking technology to Japan. The Yayoi expansion began on the island of Kyushu, where haplogroup O is very common today. It is possible that some of the early members of O1-F3356 were involved in this major shift, which quickly and dramatically altered Japanese culture.

O-CTS1215 Migration Map