Additional data file 8.(a) First two principal components for Brazil data; clusters suggest population structure. (b) First two components for worldwide data set. (c) First and third components for worldwide data set. Format: PDF Size: 15KB Download file This file can be viewed with: Adobe Acrobat Reader Neafsey et al. Genome Biology 2008 9:R171 doi:10.1186/gb-2008-9-12-r171 |