The biomaterials currently available for this population are shown in the table below:

Population Description

Principal Investigator for Community Engagement and Sample Collection:
Morris Foster, University of Oklahoma, Norman, Oklahoma

These cell lines and DNA samples were prepared from blood samples collected in the Southwest USA. The samples are from 12 parent-adult child trios, 23 parent-adult child duos and 8 individuals. The samples were collected from individuals who identified themselves primarily as African-American. All parents in the trios and duos, and all individuals identified themselves as having four African-American grandparents who were born in the same general area of the Southwest USA.

It is important to include a reference to "Southwest USA" when describing the source of these samples (and to use the abbreviation "ASW" where a shorthand designation is needed). Including the area of the United States were these samples were collected reinforces the point that the sample set, while in no way genetically "atypical", does not necessarily represent all African-American people in the United States, whose population history is complex. The population should not be described as "African American" out of respect for the expressed wishes of the donor community. It also should not be described simply as "African".

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 primarily African ancestry, the designation "African ancestry" (abbreviation: AFA) to describe the combined analysis panel is recommended. If only groups very closely related to this group of African ancestry individuals have similar allele frequencies, then another abbreviation may need to be used.

Additional guidance about how to refer to the HapMap populations can be found at http://www.hapmap.org/citinghapmap.html.

Policies and Guidelines

• Guidelines for Referring to the HapMap Populations in Publications and Presentations
• Important Information for Investigators Who Order HapMap Samples
• Information Provided to HapMap Sample Donor Communities
• Secondary Distribution and Shared Use of Cell Cultures and DNA Samples