2021
Gorter F, Tabares-Mafla C, Kassen R, Schoustra SE. 2021. Experimental evolution of interference competition. Frontiers in Microbiology https://doi.org/10.3389/fmicb.2021.613450
F Dargent, SM Gilmour, EA Brown, R Kassen, HM Kharouba. 2021. Low prevalence of the parasite Ophryocystis elektroscirrha at the range edge of the eastern North American monarch (Danaus plexippus) butterfly population. Canadian Journal of Zoology https://doi.org/10.1139/cjz-2020-0175
Dettman J, Kassen R. 2021. Evolutionary genomics of niche-specific adaptation to the cystic fibrosis lung in Pseudomonas aeruginosa. Mol Biol Evol 38: 663-675. https://doi.org/10.1093/molbev/msaa226
2020
Chen P, Kassen R. The evolution and fate of diversity under hard and soft selection. Proc R Soc B 287: https://doi.org/10.1098/rspb.2020.1111
Dench J, Hinz A, Aris‐Brosou S, Kassen R. 2020. Identifying the drivers of computationally detected correlated evolution among sites under antibiotic selectionJ Evolutionary applications 13 (4), 781-793 DOI: 10.1111/eva.12900
2019
Kassen R. 2019. Experimental evolution of innovation and novelty. Trends in Ecology and Evolution 34: 712-722. https://doi.org/10.1016/j.tree.2019.03.008
Dargent F, Kassen R. 2019. 'Adaptive radiation in microbes' In: Schmidt, Thomas M. (ed.) Encyclopedia of Microbiology, 4th Edition. vol. 1, pp. 22-27. UK: Elsevier. dx.doi.org/10.1016/B978-0-12-809633-8.20900-X
LeBoeuf-Taylor E, McCloskey N, Hinz A, Bailey SF, Kassen R. 2019. The distribution of fitness effects among synonymous mutations in a gene under selection. eLife 8: e45952. doi: 10.7554/eLife.45952 For plain language summary click here.
2018
Schick A, Kassen R. 2018. Rapid diversification of Pseudomonas aeruginosa in cystic fibrosis lung-like conditions. Proceedings of the National Academy of Sciences USA 115: 10714-10719. https://www.pnas.org/content/115/42/10714.short?rss=1; Unedited ms at www.biorxiv.org/content/early/2017/12/08/231050
Leale A, Kassen R. 2018. The evolution, coexistence, and demise of diversity in a spatially variable antibiotic regime. Evolution Letters 2: 134-143 https://doi.org/10.1002/evl3.43. Accompanying commentary at http://theconversation.com/drug-sanctuaries-offer-hope-for-a-post-antibiotic-world-94473
2017
Melnyk A, Hinz A, McCloskey N, Kassen R. 2017. The evolution of cost-free resistance under fluctuating drug selection in Pseudomonas aeruginosa. mSphere 2: e00158-17 online open access
Kraemer S, Ryker-Soucy J, Kassen R. 2017. Antagonistic interactions of soil pseudomonads are structured in time. FEMS Microbial Ecology 93: fix046
Dettman J, Rodrigue N, Schoutra SE, Kassen R. 2017. Genomics of compensatory adaptation in experimental populations of Aspergillus nidulans. G3 7: 427-436
Rode N, Soroye P, Kassen R, Rundle H. 2017. Air-borne genotype by genotype indirect genetic effects are substantial in the filamentous fungus Aspergillus nidulans. Heredity 119: 1-7
Shewaramani S, Finn TJ, Leahy SC, Kassen R, Rainey PB, Moon CD. 2017. Anaerobically grown Escherichia coli have an enhanced mutation rate and distinct mutational spectra. PLoS Genetics 13: e1006570 online open access
Bailey SF, Blanquart F, Bataillon T, Kassen R. 2017. What drives parallel evolution? BioEssays 39: 1600176 online open access
2016
Kraemer S & Kassen R. 2016. Temporal patterns of local adaptation in soil pseudomonads. Proc R Soc B 283: 20161652 online open access
Dettman JD, Sztepanacz JL & Kassen R. 2016. The properties of spontaneous mutations in the opportunistic pathogen Pseudomonas aeruginosa. BMC Genomics 17: 27 pdf
2015
Schick, A, Bailey, SF & Kassen, R. 2015. Evolution of fitness trade-offs in locally adapted populations of Pseudomonas fluorescens. American Naturalist 186: S48-S59
Bailey, SF, Rodrigue, N & Kassen, R. 2015. The effect of selection environment on the probability of parallel evolution. Molecular Biology and Evolution doi:10.1093/molbev/msv033 pdf
Kraemer, S. & Kassen, R. 2015. Patterns of local adaptation in space and time among soil bacteria. American Naturalist 185: 317-331. pdf
Melnyk, AH, Wong, A & Kassen, R. 2015. The fitness costs of antibiotic resistance mutations. Evolutionary Applications doi: 10.1111/eva.12196. pdf
Dettman, JR, Rodrigue, N & Kassen, R. 2015. Genome-Wide Patterns of Recombination in the Opportunistic Human Pathogen Pseudomonas aeruginosa. Genome Biology and Evolution 7: 18-34. pdf
2014
Bailey, SF, Hinz, A & Kassen, R. 2014. Adaptive synonymous mutations in an experimentally evolved Pseudomonas fluorescens population. Nature Communications 5: 4076. pdf
Kassen, R. 2014. Experimental Evolution and the Nature of Biodiversity. Roberts and Company, Publishers. Website
2013
Bailey, SF, Dettman, JR, Rainey, PB & Kassen, R. 2013. Competition both drives and impedes diversification in a model adaptive radiation. Proceedings of the Royal Society B 280: 20131253. pdf
Dettman, JR, Rodrigue, N, Aaron, SD & Kassen, R. 2013. Evolutionary genomics of epidemic and nonepidemic strains of Pseudomonas aeruginosa. Proceedings of the National Academy of Sciences USA 110: 21065-21070. pdf
Schoustra, SE, Kasase, C, Toarta, C, Kassen, R. & Poulain, A. J. 2013. Microbial Community Structure of Three Traditional Zambian Fermented Products: Mabisi, Chibwantu and Munkoyo. PLoS ONE 8: e63948. pdf
2012
Bailey, SF & Kassen, R. 2012. Spatial structure of ecological opportunity drives adaptation in a bacterium. American Naturalist 180: 270-283. pdf
Dettman, JR, Rodrigue, N, Melnyk, AH, Wong, A, Bailey, SF & Kassen, R. 2012. Evolutionary insight from whole-genome sequencing of experimentally evolved microbes. Molecular Ecology 21: 2058-2077. pdf
Schoustra, SE, Dench, J, Dali, R, Aaron, SD & Kassen, R. 2012. Antagonistic interactions peak at intermediate genetic distance in clinical and laboratory strains of Pseudomonas aeruginosa. BMC Microbiology 12: 40. pdf
Schoustra, SE, Punzalan, D, Dali, R, Rundle, HD. & Kassen, R. 2012. Multivariate Phenotypic Divergence Due to the Fixation of Beneficial Mutations in Experimentally Evolved Lineages of a Filamentous Fungus. PLoS ONE 7:e50305. pdf
Wong, A, Rodrigue, N & Kassen, R. 2012. Genomics of Adaptation during Experimental Evolution of the Opportunistic Pathogen Pseudomonas aeruginosa. PLoS Genetics 8:e1002928. pdf
2011
Bataillon, T, Zhang, T & Kassen, R. 2011. Cost of adaptation and fitness effects of beneficial mutations in Pseudomonas fluorescens. Genetics 189: 939-949. pdf
Gifford, DR, Schoustra, SE & Kassen, R. 2011. The length of adaptive walks is insensitive to starting fitness in Aspergillus nidulans. Evolution 65: 3070-3078.pdf
Kassen, R. 2011. World View: If you want to win the game, you must join in. Nature 480: 153. pdf
Melnyk, AH & Kassen, R. 2011. Adaptive landscapes in evolving populations of Pseudomonas fluorescens. Evolution 65: 3048-3059.pdf
Meyer, JR, Schoustra, SE, Lachapelle, J & Kassen, R. 2011. Overshooting dynamics in a model adaptive radiation. Proceedings of the Royal Society B 278: 392-398. pdf
Wong, A & Kassen, R. 2011. Parallel evolution and local differentiation in quinolone resistance in Pseudomonas aeruginosa. Microbiology 157: 937-944. pdf
2010
Fitzsimmons, JM, Schoustra SE, Kerr, JT & Kassen, R. 2010. Population consequences of mutational events: effects of antibiotic resistance on the r/K trade-off. Evolutionary Ecology 24:227-236. pdf
Schoustra, S, Rundle, HD, Dali, R & Kassen, R. 2010. Fitness-associated sexual reproduction in a filamentous fungus. Current Biology 20: 1350-1355. pdf
2009
Kassen, R. 2009. Towards a general theory of adaptive radiation: insights from microbial experimental evolution. Annals of the New York Academy of Sciences 1168: 3-22. pdf
Pepper, JW, Findlay, CS, Kassen, R, Spencer, SL & Maley, CC. 2009. Cancer research meets evolutionary biology. Evolutionary Applications 2: 62-70. pdf
Schoustra, SE, Bataillon, T, Gifford, DR & Kassen, R. 2009. The Properties of Adaptive Walks in Evolving Populations of Fungus. PLoS Biology 7: e1000250. pdf
Sherratt, TN, Roberts, G & Kassen, R. 2009. Evolutionary stable investment in products that confer both and individual benefit and public good. Frontiers in Bioscience 14: 4557-4564.
2008
Hall, AR, Meyer, JR, & Kassen, R. 2008. Selection for predator resistance varies with resource supply in a model adaptive radiation. Evolutionary Ecology Research 10: 735-746. pdf
2007
Bantinaki, E, Kassen, R, Knight, CG, Robinson, Z, Spiers, AJ & Rainey, PB. 2007. Adaptive divergence in experimental populations of Pseudomonas fluorescens. III. Mutational origins of wrinkly spreader diversity. Genetics 176: 441-453. pdf
Jasmin, J-N & Kassen, R. 2007. Evolution of a single niche specialist in variable environments. Proceedings of the Royal Society B 274: 2761-2767. pdf
Jasmin, J-N & Kassen, R. 2007. On the experimental evolution of specialization and diversity in heterogeneous environments. Ecology Letters 10: 272-281. pdf
Meyer, JR & Kassen, R. 2007. The effects of competition and predation on diversification in a model adaptive radiation. Nature 446: 432-435. pdf
2006
Kassen, R & Bataillon, T. 2006. The distribution of fitness effects among beneficial mutations prior to selection in experimental populations of bacteria. Nature Genetics: 38, 484-488. pdf
2004
Jessup, CM, Kassen, R, Forde, SE, Kerr, B, Buckling, A, Rainey, PB & Bohannon, BJM. 2004. Big questions, small worlds: microbial model systems in ecology. Trends in Ecology and Evolution 19: 189-197. pdf
Kassen, R, Llewellyn, M & Rainey, PB. 2004. Ecological constraints on diversification in a model adaptive radiation. Nature 431: 984-988. pdf
Kassen, R & Rainey, PB. 2004. The ecology and genetics of microbial diversity. Annual Reviews of Microbiology 58: 207-231. pdf
Knight, C, Kassen, R, Hebestreit, H & Rainey, PB. 2004. Global analysis of predicted proteomes: functional adaptation of physical properties. Proceedings of the National Academy of Sciences USA 101: 8390-8395. pdf
2002
Kassen, R. 2002. The experimental evolution of specialists, generalists, and the maintenance of diversity. Journal of Evolutionary Biology 15: 173-190. pdf
2000
Buckling, A, Kassen, R, Bell, G & Rainey, PB. 2000. Disturbance and diversity in experimental microcosms. Nature 408: 961-965. pdf
Kassen, R & Bell, G. 2000. The ecology and genetics of fitness in Chlamydomonas. X. The relationship between genetic correlation and genetic distance. Evolution 54: 425-432. pdf
Kassen, R, Buckling, A, Bell, G & Rainey, PB. 2000. Diversity peaks at intermediate productivity in a laboratory microcosm. Nature 406: 508-512. pdf
Rainey, PB, Buckling, A, Kassen, R & Travisano, M. 2000. The emergence and maintenance of diversity: insights from experimental bacterial populations. Trends in Ecology and Evolution 15: 243-247. pdf
1998
Kassen, R & Bell, G. 1998. Experimental evolution in Chlamydomonas. IV. Selection in environments that vary through time at different scales. Heredity 80: 732-741. pdf