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Inference of population structure using multilocus genotype data: dominant markers and null alleles
Version of Record online: 26 MAR 2007
© 2007 The Authors. Journal compilation © 2007 Blackwell Publishing Ltd
Molecular Ecology Notes
Volume 7, Issue 4, pages 574–578, July 2007
How to Cite
FALUSH, D., STEPHENS, M. and PRITCHARD, J. K. (2007), Inference of population structure using multilocus genotype data: dominant markers and null alleles. Molecular Ecology Notes, 7: 574–578. doi: 10.1111/j.1471-8286.2007.01758.x
- Issue online: 26 MAR 2007
- Version of Record online: 26 MAR 2007
- Received 2 December 2006; revision accepted 19 February 2007
Dominant markers such as amplified fragment length polymorphisms (AFLPs) provide an economical way of surveying variation at many loci. However, the uncertainty about the underlying genotypes presents a problem for statistical analysis. Similarly, the presence of null alleles and the limitations of genotype calling in polyploids mean that many conventional analysis methods are invalid for many organisms. Here we present a simple approach for accounting for genotypic ambiguity in studies of population structure and apply it to AFLP data from whitefish. The approach is implemented in the program structure version 2.2, which is available from http://pritch.bsd.uchicago.edu/structure.html.