小中大1.Software, called STRUCTURE, written by JK Pritchard and colleagues is potentially useful to address this problem.
Pritchard, J. K., Stephens, M., and Donnelly, P. (2000a). Inference of population structure using multilocus genotype data. Genetics, 155:945
2.LAMP - Sriram Sankararaman, Srinath Sridhar, Gad Kimmel andEran Halperin, Estimating Local Ancestry in Admixed Populations, The American Journal of Human Genetics, Volume 82, Issue 2, 290-303, 2008