Speciation, the evolution of reproductive isolation among populations, is continuous,
complex, and involves multiple, interacting barriers. Until it is complete, the effects of this …

Hybridization among diverging lineages is common in nature. Genomic data provide a
special opportunity to characterize the history of hybridization and the genetic basis of …

Population mixture is an important process in biology. We present a suite of methods for
learning about population mixtures, implemented in a software package called …

Local-ancestry inference is an important step in the genetic analysis of fully sequenced
human genomes. Current methods can only detect continental-level ancestry (ie, European …

As modern and ancient DNA sequence data from diverse human populations accumulate,
evidence is increasing in support of the existence of beneficial variants acquired from …

Hybridization has played an important role in the evolution of many lineages. With the
growing availability of genomic tools and advancements in genomic analyses, it is becoming …

Hybridization has many and varied impacts on the process of speciation. Hybridization may
slow or reverse differentiation by allowing gene flow and recombination. It may accelerate …

Modern genetic data combined with appropriate statistical methods have the potential to
contribute substantially to our understanding of human history. We have developed an …

Long-range migrations and the resulting admixtures between populations have been
important forces shaping human genetic diversity. Most existing methods for detecting and …

Polar bears are uniquely adapted to life in the High Arctic and have undergone drastic
physiological changes in response to Arctic climates and a hyperlipid diet of primarily …