Theoretical Speciation Genomics: the divergence of populations in the face of gene flow


A great deal of evolutionary theory is based upon a scenario involving adaptation of two diverging populations under divergent ecological selection pressures (i.e., a classic “two-deme” scenario).  Patrik Nosil, Jeff Feder, and I have been investigating extensions of classic theory in several ways:

  1. (1)considering the role of “mutation order” effects--distinct from ecological selection--during population divergence, and

  2. (2)incorporating spatial variation in selection pressures.

  3. (3)partitioning the effects of direct selection vs. “genetic hitchhiking” in promoting speciation-with-gene-flow.

samuel m. flaxman

Assistant Professor, Department of Ecology and Evolutionary Biology

University of Colorado Boulder

Relevant publications >>

Feder et al. 2013.  Annual Review of Ecology, Evolution, and Systematics

Flaxman, Feder, and Nosil. 2013.  Evolution

Flaxman, Feder, and Nosil.  2012.  Journal of Evolutionary Biology.

Feder, Flaxman, Egan, and Nosil. 2012.  Journal of Evolutionary Biology.

Nosil and Flaxman. 2011.  Proceedings B.