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Post Docs


I am a quantitative geneticist and systems biologist interested in plant-microbe interactions. My previous work during my Ph.D. has focused on plant genetic control of central and specialized metabolism, as well as the importance of genetic variation in the plant host and fungal necrotrophic pathogen in quantitative resistance. My undergraduate and master’s work explored the use of biotechnology for restoration of American chestnut (Castanea dentata) to the eastern forests of North America after the introduction of the devastating chestnut blight fungus (Cryphonectria parasitica). At CSU, I am working to understand on how plant intra-specific variation shapes host-associated microbiomes and how plant hosts can shape the microbial communities that inhabit them.

FEDERICO MARTIN | Office: C209 Plant Science Building | Email:

I’m a native from Santa Fe, Argentina and my educational background includes a B.S. from Arizona State University and a Ph.D. from the University of Florida. My main area of interest is plant molecular biology and cell development focusing mostly in cereal crops. Currently, I’m working on an NSF funded project aimed to improve rice disease resistance response utilizing genome editing technology to analyze transcriptional activation of disease resistance QTLs.

YUAN ZENG | Office: C202 Plant Science Building | Email:

I am originally from China, and I came to the U.S. for graduate school at Auburn University in Forestry, Entomology, and Statistics. I joined Dr. Amy Charkowski’s laboratory in Fall 2017 at Colorado State University. My research at the San Luis Valley Research Center focuses on improving detection and management of soil-borne potato pathogens, with an emphasis on Potato mop-top virus (PMTV), a virus causes necrosis of potato, and its vector Spongospora subterranea, the agent responsible for powdery scab on potato tubers in order to aid local farmers in understanding soil-borne potato pathogens and improving management strategies.


I am an evolutionary biologist interested in how organisms adapt to their environment. My Ph.D. research focused on local adaptation of the invasive crop pest Drosophila suzukii to different host plants, in wild and experimental populations. I received my Ph.D. in Ecology and Evolution from the University of Montpellier (France) in 2019. Now, I am a postdoc in Ruth Hufbauer’s lab. I am working with Tribolium beetles to study the conditions that allow declining populations in stressful environments to adapt and grow, a phenomenon called evolutionary rescue. I am studying the effects of different eco-evolutionary factors on evolutionary rescue, including the role of density dependence. To do that, as in my Ph.D., I am using experimental evolution and population genomics.

Olga Kohzar | Email:

I am a postdoctoral fellow at Colorado State University. I received my Ph.D. in Plant Pathology at Washington State University in 2019. I studied ecology and population biology of Botrytis cinerea, causal agent of gray mold disease, on small fruit hosts in the U.S. Pacific Northwest. My main research interests are fungal evolution, population biology, migration and adaptation of fungal plant pathogens to hosts and environments. In 2020, I joined Dr. Jane Stewart’s Lab to study the evolution of emerging fungal tree pathogen, a newly identified potential hybrid of two fungal species – white pine blister rust (Cronartium ribicola) and comandra blister rust (Cronartium comandrae). My other research focus lays into the investigation of population genomics of the fungus Phellinux noxius that causes brown root rot on tropical trees

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