Demographic model of admixture predicts symmetric introgression when a species expands into the range of another: A comment on Currat et al. (2008)

Genomic Evidence for Island Population Conversion Resolves Conflicting Theories of Polar Bear Evolution

(2013) James A. Cahill et al.   PLoS Genetics

Asymmetric Introgressive Hybridization Among Louisiana Iris Species

(2010) Michael Arnold et al.   Genes

Genetic Consequences of Range Expansions

(2009) Laurent Excoffier et al.   Annual Review of Ecology Evolution and Systematics

More introgression with less gene flow: chloroplast vs. mitochondrial DNA in thePicea asperatacomplex in China, and comparison with other Conifers

(2009) FANG K. DU et al.   MOLECULAR ECOLOGY

Species relative abundance and direction of introgression in oaks

(2009) O. LEPAIS et al.   MOLECULAR ECOLOGY

Gene flow and species delimitation

(2009) Rémy J. Petit et al.   TRENDS IN ECOLOGY & EVOLUTION