Originally published as Genetics Published Articles Ahead of Print on September 14, 2008.

Genetics, Vol. 180, 1767-1771, November 2008, Copyright © 2008
doi:10.1534/genetics.108.091850

Controlling Type-I Error of the McDonald–Kreitman Test in Genomewide Scans for Selection on Noncoding DNA

Department of Ecology and Evolutionary Biology and the Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey 08544

1 Author e-mail: pandolfa{at}princeton.edu

Departures from the assumption of homogenously interdigitated neutral and putatively selected sites in the McDonald–Kreitman test can lead to false rejections of the neutral model in the presence of intermediate levels of recombination. This problem is exacerbated by small sample sizes, nonequilibrium demography, recombination rate variation, and in comparisons involving more recently diverged species. I propose that establishing significance levels by coalescent simulation with recombination can improve the fidelity of the test in genomewide scans for selection on noncoding DNA.




This article has been cited by other articles:


Home page
Mol Biol EvolHome page
J. Parsch, Z. Zhang, and J. F. Baines
The Influence of Demography and Weak Selection on the McDonald-Kreitman Test: An Empirical Study in Drosophila
Mol. Biol. Evol., March 1, 2009; 26(3): 691 - 698.
[Abstract] [Full Text] [PDF]