Plant Pathology Faculty
- Ph.D. Ecology and Evolution, The University of Chicago, 2005
- B.A. Biology, Wesleyan University, 1997
- Curriculum Vitae
My research is on the origins, evolution, population structure, and migration of plant pathogens. I am also interested in the molecular evolution of virulence and host range as relates to the emergence of new pathogens. In addition to my appointment in the Department of Plant Pathology, I am a member of the interdisciplinary Emerging Pathogens Institute at UF.
The focus of research in the lab is on the genus Phytophthora, which includes a number of emerging plant pathogens. Phytophthora are Oomycetes, which share life history characteristics with fungi but are members of a distinct lineage of eukaryotes with diatoms and brown algae. They are responsible for some of the most economically and ecologically destructive plant diseases. Since the discovery of P. ramorum as the causal agent of sudden oak death in northern California in the late 1990s, the number of Phytophthora species has more than doubled as a result of monitoring efforts. But little is known about the origin or distribution of many Phytophthora species, or how many other potentially damaging Phytophthora remain undiscovered. We are interested in the processes behind the emergence of Phytophthora pathogens, both new diseases and new genotypes of existing pathogens.
We have recently begun studying the pathogen Pythium insidiosum, which is the only known mammalian pathogen in a genus better known for plant pathogens and soil saprophytes. It causes Pythiosis of dogs and horses in the Southeastern US and is common in North Central Florida. We are interested in the ecology and evolutionary origin of this unusual pathogen.
I teach PLP6621 Applied Population Genetics of Microbes, which is an intermediate level graduate course that introduces students to population genetics and hands-on analysis of data. I am also the instructor for ALS3923 CALS Honors Orientation, which prepares undergraduates in the College to write a thesis on independent research.
Marina Ascunce, PhD
Maria Costa de Novaes, intern from Brazil
Daysi Gomez, Student Science Training Program 2013
Graduate student associates
- Cooke DEL, LM Cano, S Raffaele, RA Bain, LR Cooke, G Etherington, KL Deahl, RA Farrer, EM Gilroy, EM Goss, NJ Grünwald, I Hein, D MacLean, JW McNicol, E Randall, RF Oliva, MA Pel, DS Shaw, JN Squires, MC Taylor, VGAA Vleeshouwers, PRJ Birch, AK Lees, S Kamoun (2012) Genome analyses of an aggressive and invasive lineage of the Irish potato famine pathogen, PLoS Pathogens 8(10): e1002940.
- Grünwald NJ, M Garbelotto, EM Goss, K Heungens, and S Prospero (2012) Emergence of the sudden oak death pathogen Phytophthora ramorum, Trends in Microbiology 20 (3): 131-138.
- Grünwald NJ and EM Goss (2011) Evolution and population genetics of exotic and reemerging pathogens: Novel tools and approaches. Annual Review of Phytopathology 49: 249–67.
- Goss EM, ME Cardenas, K Myers, GA Forbes, WE Fry, S Restrepo and NJ Grünwald (2011) The plant pathogen Phytophthora andina emerged via hybridization of an unknown Phytophthora species and the Irish Potato Famine pathogen, P. infestans. PLoS ONE 6(9): e24543.
- Goss, EM, MM Larsen, A Vercauteren, S Werres, K Heungens, and NJ Grünwald (2011) Phytophthora ramorum in Canada: Evidence for migration within North America and from Europe. Phytopathology 101:166-171.
- Goss, EM, MM Larsen, GA Chastagner, DR Givens, and NJ Grünwald (2009) Population genetic analysis infers migration pathways of Phytophthora ramorum in US nurseries. PLoS Pathogens 5: e1000583.
- Grünwald NJ, EM Goss, et al. (2009) Standardizing the nomenclature for clonal lineages of the sudden oak death pathogen, Phytophthora ramorum, Phytopathology 99:792-795.
- Goss, EM, I Carbone, NJ Grünwald (2009) Ancient isolation and independent evolution of the three clonal lineages of the exotic sudden oak death pathogen Phytophthora ramorum, Molecular Ecology 18: 1161-1174.
- Goss, EM and J Bergelson (2007) Fitness consequences of infection of Arabidopsis thaliana with its natural bacterial pathogen Pseudomonas viridiflava, Oecologia 152: 71-81.
- Goss, EM and J Bergelson (2006) Variation in resistance and virulence in the interaction between Arabidopsis thaliana and a bacterial pathogen, Evolution 60:1562–1573.
- Araki, H, D Tian, EM Goss, K Jakob, S. S. Hallsdorsdottir, M Kreitman and J Bergelson (2006) Balancing selection on two pathogenicity islands in a pathogen of Arabidopsis, Proc. Natl. Acad. Sci. 103:5887-5892.
- Goss, EM, M Kreitman, and J Bergelson (2005) Genetic diversity, recombination, and cryptic clades in Pseudomonas viridiflava infecting natural populations of Arabidopsis thaliana, Genetics 169:21-35.