Gambian in Western Division – Mandinka [GWD]

Available Samples Family Relationships
Cell Cultures: 179
DNA: 179
DNA Sample Panel: MGP00019
 Trios:  59
 Parent-Child Duos:  1


Population Description

These cell lines and DNA samples were prepared from blood samples collected in the Western District of Gambia from individuals who identified themselves as Mandinka. All parents in the trios identified themselves as having Mandinka parents of at least two generations.

Referring to Populations

It is important to include a reference to the “Mandinka in Western Division of Gambia” when describing the source of these samples. This reinforces the point that the sample set, while not genetically “atypical”, does not necessarily represent all Mandinka people or all Gambian people, whose population history is complex. The population should not be described merely as “African”, “Sub-Saharan African”, “West African”, or “Gambian”, since each of those designators encompasses many populations with different geographic ancestries.

The full population descriptor is Gambian in Western Division – Mandinka. The shorthand label is Gambian Mandinka and the abbreviation is GWD.

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 all the groups have African Ancestry, then the recommended designation to describe the combined analysis panel is “African Ancestry” (abbreviation: AFA).  If only groups very closely related to the Mandinka 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 Investigators

  • Muminatou Jallow, Fatoumatta Sisay Joof, Tumani Corrah, Kirk Rockett, and Dominic Kwiatkowski 
  • Medical Research Council Unit
  • The Gambia and the University of Oxford, Oxford, UK