Dr Katy Hayden
Dr Katy Hayden, Plant Health Officer
Dr Katy Hayden, Plant Health Officer
Katy is an evolutionary ecologist and RBGE’s Quarantine and Plant Health Officer. Her research is focused on the evolutionary changes that may drive or be driven by new host-microbe associations, and on appropriate management responses. Her work bridges Science and Horticulture, investigating best practice for biosecurity for a conservation organisation, and communicating her work to practitioners and the public.
Katy came to RBGE after a postdoctoral fellowship working with the Tree-Microbe Interactions Group at INRA Nancy, and postdoctoral and doctoral work in the Forest Pathology & Mycology Lab at UC Berkeley. Her first experiences in the intersection of plant and fungal ecology were with the Parker and Gilbert Labs, as an undergraduate at UC Santa Cruz.
Dr Katy Hayden
Selected Refereed Publications
Persoons A., Hayden K.J., Fabre B., Frey P., De Mita S., Tellier A., Halkett F. 2017. The escalatory Red Queen: Population extinction and replacement following arms-race dynamics in poplar rust. Molecular Ecology. doi:10.1111/mec.13980
Becheler, R., Xhaard, C., Klein, E., Hayden, K., Frey, P., De Mita, S., Halkett, F. 2016. Genetic signatures of a range expansion in natura: when clones play leapfrog. Ecology and Evolution. doi: 10.1002/ece3.2392
Desprez-Loustau, M.-L., Aguayo, J., Dutech, C., Hayden, K.J., Husson, C., Jakushkin, B., Marçais, B., Piou, D., Robin, C., Vacher, C. 2015. An evolutionary ecology perspective to address forest pathology challenges of today and tomorrow. Annals of Forest Science doi: 10.1007/s13595-015-0487-4
Eyre, C.A., Hayden, K.J., Kozanitas, M., Grünwald, N.J., Garbelotto, M. 2014. Evolutionary lineage interacts with temperature and host to influence Phytophthora ramorum virulence. Plant Disease. doi: 10.1094/PDIS-02-14-0151-RE
Hayden, K.J., Garbelotto, M., Cronn, R., Knaus, B., Rai, H., Wright, J.W. 2014. Dual RNA-seq of the plant pathogen Phytophthora ramorum and its tanoak host. Tree Genetics and Genomes. doi: 10.1007/s11295-014-0698-0
Hayden, K.J., Garbelotto, M., Dodd, D., Wright, J.W. 2013. Scaling up from greenhouse to field resistance to an introduced forest disease reveals the potential for evolution and management. Evolutionary Applications. doi:10.1111/eva.12080
Cobb, R., Metz, M., Frangioso, K, Garbelotto, M., Hayden, K.J., Rizzo, M. 2013. Biodiversity conservation in the face of dramatic forest disease: an integrated conservation strategy for tanoak (Notholithocarpus densiflorus) threatened by sudden oak death. Madroño 60: 151-164.
Osmundson, T., Eyre, C., Hayden, K., Dhillon, J., Garbelotto, M. 2013 Back to basics: An evaluation of NaOH and alternative rapid DNA extraction protocols for DNA barcoding, genotyping, and disease diagnostics from fungal and oomycete samples. Molecular Ecology Resources. doi: 10.1111/1755-0998.12031
Garbelotto, M. and Hayden, K.J. 2012. Sudden Oak Death: interactions of the exotic oomycete Phytophthora ramorum with naïve North American hosts. Eukaryotic Cell doi: 10.1128/EC.00195-12
Hayden, K.J., Nettel, A., Dodd, R., Garbelotto, M. 2011. Will all the trees fall? Variable resistance to an introduced forest disease in a highly susceptible host. Forest Ecology and Management 261: 1781-1791.
Hüberli, D., Hayden, K.J., Calver, M., Garbelotto, M. 2011. Intraspecific variation in host susceptibility and climatic factors mediate the progression of sudden oak death in US woodlands. Plant Pathology doi: 10.1111/j.1365-3059.2011.02535.x.
Hayden, K.J., Ivors, K., Wilkinson, C., Garbelotto, M. 2006. TaqMan chemistry for Phytophthora ramorum detection and quantification, with a comparison of diagnostic methods. Phytopathology 96: 846-854.
Swain, S., Harnik, T., Mejia-Chang, M., Hayden, K., Bakx, W., Creque, J., Garbelotto, M. 2006. Composting is an effective treatment option for sanitization of Phytophthora ramorum-infected plant material. Journal of Applied Microbiology 101: 815-827.
Hayden, K.J., Rizzo, D., Tse, J., Garbelotto, M. 2004. Detection and quantification of Phytophthora ramorum from California forests using a real-time polymerase chain reaction assay. Phytopathology 94: 1075-1083.
Hayden, K.J., Parker, I.M. 2002. Plasticity in cyanogenesis of Trifolium repens L: Inducibility, fitness costs, and variable expression. Evolutionary Ecological Research 4: 155-168.
Hayden, K.J., Garbelotto, M. 2015. Protocol 02-11.1: Detached leaf inoculation for tanoak. in: Ivors, K. (Ed.) Laboratory Protocols for Phytophthora species. American Phytopathological Society, online https://apsjournals.apsnet.org/doi/abs/10.1094/9780890544969.02.11.1
Hayden, K.J., Hardy, G.E.St.J., Garbelotto, M. Oomycete Diseases. 2013. In: Gonthier, P., Nicoletti, G. (Eds.), Infectious Forest Diseases, CABI, Oxfordshire, UK.
Membership and committees
Fellow 2016 Scottish Crucible, and member of the Royal Society of Biology, the British Mycological Society. Represents RBGE in the International Plant Sentinel Network and the UK Tree Health Citizen Science Network. Steering groups of the Edinburgh Plant Sciences, and the Scottish Government’s Natural Asset Register Data Portal, and Risks of Phytophthora species to the Scottish environment and rural economy project.
Research Group and Teaching
Agathe Maupetit (2017) Evolution of aggressiveness and morphological traits in the poplar rust fungus Melampsora larici-populina following a major resistance breakdown. INRA Nancy, Université de Lorraine
Xueyang Huang (2018) Consistency of taxonomic assignment methods for Phytophthora sp. University of Edinburgh
Malcolm Gibson (2017) Mapping the plant destroyer: Phytophthora at RBGE. University of Edinburgh
MSc Plant Taxonomy and Biodiversity (University of Edinburgh & RBGE)
- Biosecurity and plant conservation
MSc Sustainable Plant Health (SRUC)
- Forensic plant health in a conservation organisation
HND in Horticulture with Plantsmanship
- Epidemiology of plant diseases
- Dr Christopher Ellis
- Dr Neil Bell
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