Cruzan Lab - Portland State University - Biology

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)

Cheeke, T.E., U.M. Schütte, C.M. Hemmerich, M.B. Cruzan, T.N. Rosenstiel, and J.D. Bever.  2015. Spatial soil heterogeneity has a greater effect on symbiotic arbuscular mycorrhizal fungal communities and plant growth than genetic modification with Bacillus thuringiensis toxin genes.  Molecular Ecology 24:2580-2593.

Taylor, L. A. V., E. A. Hasenkopf, and M. B. Cruzan. 2015. Barriers to invasive infilling by Brachypodium sylvaticum in Pacific Northwest forests. Biological Invasions (in press).

Taylor, L. A. V. and M. B. Cruzan. 2015. Propagule pressure and disturbance drive the invasion of perennial false brome (Brachypodium sylvaticum). Invasive Plant Science and Management (in press).

Cheeke, T. E., H. Darby, T. N. Rosenstiel, J. Bever, and M. B. Cruzan. 2014. Effect of Bacillus thuringiensis (Bt) maize cultivation history on arbuscular mycorrhizal fungal colonization, spore abundance and diversity, and plant growth. Agriculture Ecosystems & Environment 195:29-35.

Rhode Ward, J. M., M. L. Cowart, J. Clifford, M. Camp, and M. B. Cruzan. 2014. Variation in sex allocation and floral morphology in an expanding distylous plant hybrid complex  Int. J. Plant Sci. In press. .

Cheeke, T.E., M.B. Cruzan, and T.N. Rosenstiel. 2013. Field evaluation of arbuscular mycorrhizal fungal colonization in Bacillus thuringiensis toxin-expressing (Bt) and Non-Bt maize. Applied and Environmental Microbiology 79: 4078-4086.

Fox, S. E., J. Preece, J. A. Kimbrel, G. L. Marchini, A. Sage, K. Youens-Clark, M. B. Cruzan, and P. Jaiswal. 2013. Sequencing, assembly and characterization of a transcriptome resource for Brachypodium sylvaticum (Poaceae). Applications in the Plant Sciences 1:1200011.

Anton, K. A., J. M. Rhode Ward, and M. B. Cruzan. 2013. Pollinator-mediated selection on floral morphology: evidence for transgressive evolution in derived hybrid populations. Journal of Evolutionary Biology 26:660-673.

Sochacki, P., J. Rhode Ward, and M.B. Cruzan. 2013. Consequences of mycorrhizal colonization for Piriqueta morphotypes under drought stress. International Journal of Plant Sciences 174:65-73.

Cheeke, T.E., T.N. Rosenstiel, and M.B. Cruzan. 2012. Evidence of reduced arbuscular mycorrhizal fungal colonization in multiple Bt maize lines. American Journal of Botany 99:700-707.

Cheeke, T. E., B. A. Pace, T. N. Rosenstiel, and M. B. Cruzan. 2011. The influence of fertilizer level and spore density on arbuscular mycorrhizal colonization of transgenic Bt 11 maize (Zea mays) in experimental microcosms. Fems Microbiology Ecology 75:304-312.

Andalo, C., M. B. Cruzan, C. Cazettes, B. Pujol, M. Burrus, and C. Thebaud. 2010. Post-pollination barriers do not explain the persistence of two distinct Antirrhinum subspecies with parapatric distribution. Plant Syst. Evol. 286:223-234.

Machado, H.E. and M.B. Cruzan. 2010. Intraspecific variation in gene expression under prolonged drought in Piriqueta hybrids and their parental taxa.  Plant Science 178:429-439.

Ramakrishnan, A. P., T. Musial, and M. B. Cruzan. 2010. Shifting dispersal modes at an expanding species’ range margin. Molecular Ecology 19:1134-1146.

Picotte, J.J., J.M. Rhode, and M.B. Cruzan. 2009.  Leaf morphological responses to variation in water availability for plants in the Piriqueta caroliniana complex.  Plant Ecology 200:267-275.

Rosenthal, D.M., A.P. Ramakrishnan, and M.B. Cruzan. 2008.  Evidence for multiple sources and intraspecific hybridization at early stages of the invasion of Brachypodium sylvaticum (Hudson) Beauv. in North America. Molecular Ecology 17:4657-4669.

Ramakrishnan, A.P.,  D.M. Rosenthal, T. Musial, and M.B. Cruzan. 2008. Isolation and characterization of nine microsatellite markers for Brachypodium sylvaticum (Huds.) Beauv., a recently invasive grass species in Oregon.  Molecular Ecology Resources 8:1297-1299.

Picotte, J.J., D.M. Rosenthal, J.M. Rhode, and M.B. Cruzan. 2007. Plastic responses to temporal variation in moisture availability: consequences for water use efficiency and plant performance. Oecologia 153:821-832.

Banta, J., J. Dole, M.B. Cruzan, and M. Pigliucci. 2007.  Local adaptation to conditions besides the photoperiodic regime in Arabidopsis thaliana.  Evolution 61:2419-2432.

Benz, B.R., J.M. Rhode, and M.B. Cruzan. 2007. Aerenchyma development and elevated alcohol dehydrogenase activity as alternative responses to hypoxic soils in the Piriqueta caroliniana complex. American Journal of Botany 94: 542-550.

Book Chapters

Cruzan, M.B., and D.M. Weinreich. 2012.  Adaptive landscapes.  In: Encyclopedia of Genetics, 2nd. Edition. S. Brenner and J.H. Miller, (eds.). Academic Press.