Matthew W. Hahn

This study shows hemiplasy affects evolutionary inferences for both quantitative and discrete traits, leading to overestimated evolutionary rates and false positives in phylogenetic analyses.

The paper identifies SPILS as a technical bias causing apparent substitution rate variation due to gene tree discordance, showing its impact on species tree inference and positive selection tests.

The paper compares selection efficacy on mitochondrial and nuclear genes in Drosophila and humans, finding similar selection efficacies despite differences in population size and recombination.

The paper introduces DFOIL tests to detect and determine the direction of introgression in a symmetric five-taxon phylogeny, improving upon previous methods that incorrectly identified introgression pairs and directions.