Supporting Online Material

The Genetic Structure and History of Africans and African Americans
Sarah A. Tishkoff, Floyd A. Reed, Francoise R. Friedlaender, Christopher Ehret, Alessia Ranciaro, Alain Froment, Jibril B. Hirbo, Agnes A. Awomoyi, Jean-Marie Bodo, Ogobara Doumbo, Muntaser Ibrahim, Abdalla T. Juma, Maritha J. Kotze, Godfrey Lema, Jason H. Moore, Holly Mortensen, Thomas B. Nyambo, Sabah A. Omar, Kweli Powell, Gideon S. Pretorius, Michael W. Smith, Mahamadou A. Thera, Charles Wambebe, James L. Weber, Scott M. Williams

Supporting Online Material

This supplement contains:
Materials and Methods
SOM Text
Figs. S1 to S33
Tables S1 to S9

Corrected 21 May 2009:
Two phylogenetic analyses have been added (new figs. S7 and S8), and succeeding figure numbers have been correspondingly increased. Also, text was added to the sections "Phylogenetic Analyses" (pages 3 and 4) and "Comparison of Phylogenetic Trees" (page 12).
The original version can be found here

Other Supporting Online Material for this manuscript includes the following:
(available at

Additional Data. Genotyping data used in study, presented in Microsoft Excel format. Single large workbook file is packaged as a compressed archive, in *.zip format; users should download the compressed file to their machine and decompress the file on their local hard drive, using the instructions below. (As noted in main manuscript, data are also being made available by authors on an external Web site.)

Instructions for downloading and decompressing file:

  1. Create a temporary folder on your machine's hard drive.
  2. Save the compressed archive to the temporary folder you created, using the links above.
  3. Decompress the compressed file in the temporary folder using decompression software such as WinZip (Windows; or StuffIt Expander (Windows and Mac;

Excel files can be opened and viewed using Microsoft Excel, the spreadsheet module of the freely downloadable Open Office suite, or the freely downloadable Excel Viewer available from Microsoft.