Cruzan Lab - Portland State University - Biology


News and Updates

Welcome to our new graduate students Nic Diaz and Jessica Persinger!

Recent Publications

Kohrn, B. F., J. M. Persinger, and M. B. Cruzan. 2017. An efficient pipeline to generate data for studies in plastid population genomics and phylogeography. Applications in Plant Sciences (in press).

Cruzan, M.B., B.G. Weinstein, M.R. Grasty, B.F. Kohrn, E.C. Hendrickson, T.M. Arredondo, P.G. Thompson. 2016.
Small unmanned aerial vehicles (micro-UAVs, drones) in plant ecology. Applications in Plant Sciences 4(9). (doi:

Workman, R.E. and M.B. Cruzan. 2016. Mycelial networks impact competition in an invasive grass. American Journal of Botany 103:1041-1049. (doi: 10.3732/ajb.1600142)

Marchini, M.L, N. Cole Sherlock, A.P. Ramakrishnan, D.M. Rosenthal, and M.B. Cruzan. 2016. Rapid purging of genetic load in a metapopulation and consequences for range expansion in an invasive plant. Biological Invasions 18:183-196. (doi: 10.1007/s10530-015-1001-5)

Cruzan, M.B. and S.C.H. Barrett. 2016. Post-pollination discrimination between self- and outcross-pollen covaries with the mating system of a self-compatible flowering plant. American Journal of Botany 103:568-576.   (doi:10.3732/ajb.1500139)

We utilize ecological, molecular genetic, and numerical techniques in field and greenhouse studies to address questions in ecology and evolutionary biology.  Our research interests include evaluation of hybridization as an evolutionary stimulus, the evolutionary dynamics of invasion, the ecology and evolution of mutualisms, and landscape genetics of upland prairie species in the context of range responses to climate change.  We are currently focused on the invasive false brome (Brachypodium sylvaticum) as a model system for investigating fundamental questions in ecology and evolution. 

Independent Research Opportunities for Undergraduates

Graduate Research Opportunities - Students interested in pursuing graduate research in the Cruzan Lab should contact the PI directly: Read more about graduate studies in biology and how to apply here.