Gambian in Western Division – Mandinka [GWD]

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

Population  Gambian in Western Division – Mandinka [GWD]
DNA Sample Panel  MGP00019
Individual DNA Samples  179
Individual Cell Cultures  179

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

Population Description

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

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.

After the complete descriptor “Gambian in Western Division - Mandinka” has been provided, it is acceptable to use the shorthand label “Gambian Mandinka” or the abbreviation “GWD” in the remainder of the article or presentation. However, the full descriptor for each population should be provided before the shorthand labels are used; this will help to avoid the risks associated with over-generalization of findings.

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 African ancestry, the designation "African ancestry" (abbreviation: AFA) to describe the combined analysis panel is recommended. 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.

Policies and Guidelines