Japanese in Tokyo, Japan [JPT]

Available Samples Family Relationships
Cell Cultures: 120
DNA: 120
DNA Plates: MGP00009

 Unrelated Individuals:  131



Shared Samples

The 1000 Genomes Project shares some samples with the International HapMap Collection. The Family Relationships listed above includes those samples that were also part of the HapMap Project which can be found here.

Population Description

These cell lines and DNA samples were prepared from blood samples collected in the Tokyo metropolitan area. All of the samples are from unrelated individuals.

Since it is considered culturally insensitive in Japan to inquire specifically about a person's ancestral origins, prospective donors were simply told that the general aim was to include samples from people whose grandparents were all from Japan. The samples were collected from people who came from (or whose ancestors presumably came from) many different parts of Japan. Thus, this set of samples can be viewed as generally representative of the majority population in Japan.

Referring to Populations

It is important to include a reference to "Tokyo, Japan" when describing the source of these samples in order to identify the population with precision. The population should not be described merely as "Asian" or as "East Asian", terms that encompass many populations whose ancestors came from places other than Japan.

The full population descriptor is Japanese in Tokyo, Japan. The shorthand label is Japanese and the abbreviation is JPT.

It may be scientifically appropriate to pool data from these samples with data from other ancestrally related groups, when the data show that the groups have similar allele frequencies. If the groups all have East Asian ancestry, the designation "East Asian ancestry" (abbreviation: EAA) to describe the combined analysis panel is recommended. If only groups very closely related to the Japanese have similar allele frequencies, then another abbreviation may need to be used.

Additional guidance about how to refer to the populations can be found at Guidelines for Referring to the Populations in Publications and Presentations.

Principal Investigator for Community Engagement and Sample Collection    

  • Ichiro Matsuda - Health Sciences University of Hokkaido, Japan