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Genetic and genotypic diversity of Puccinia psidii - the cause of guava/eucalypt/myrtle rust - and preliminary predictions of global areas at risk

Author(s):

Rodrigo N. Graca
Acelino C. Alfenas
Tobin L. Peever
Janice Y. Uchida
Rob D. Hauff
Chris Y. Kadooka
Phil G. Cannon
Shigetou Namba
Nami Minato
Sofia Simeto
Carlos A. Perez
Min B. Rayamajhi
Mauricio Moran
Marcela Arguedas
Rosario Medel-Ortiz
M. Armando Lopez-Ramirez
Paula Tennant
Morag Glen
Alistair McTaggart

Year:

2018

Publication type:

Proceedings (P)

Primary Station(s):

Rocky Mountain Research Station

Source:

In: Schoettle, Anna W.; Sniezko, Richard A.; Kliejunas, John T., eds. Proceedings of the IUFRO joint conference: Genetics of five-needle pines, rusts of forest trees, and Strobusphere; 2014 June 15-20; Fort Collins, CO. Proc. RMRS-P-76. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 186-173.

Description

Puccinia psidii (Basidiomycota, Uredinales) is a biotrophic rust fungus that was first reported in Brazil from guava (Psidium guajava) in 1884 (Winter 1884) and later from nonnative eucalypt (Eucalyptus capitelata and Corymbia citriodora, syn. Eucalyptus citriodora; Joffily 1944). Considered to be of Neotropical origin, the rust has also been reported to infect diverse myrtaceous hosts elsewhere in South America, Central America, the Caribbean, Mexico, the United States (California, Florida, and Hawaii), Japan, Australia, China, and most recently South Africa and New Caledonia (Carnegie et al. 2010; Giblin 2013; Kawanishi et al. 2009; MacLachlan 1938; Marlatt and Kimbrough 1979; Mellano 2006; Pérez et al. 2011; Roux et al. 2013; Uchida et al. 2006; Zambino and Nolan 2011; Zhuang and Wei 2011). Given the rate at which the pathogen is spreading and its wide host range, the objectives of this study are to determine how much genetic diversity exists within populations across the species’ putative native range as well as areas of recent introduction, evaluate possible pathways of spread, and predict the geographic area that is climatically suitable for the species to determine areas at risk of invasion.

Citation

Ross-Davis, Amy L.; Graca, Rodrigo N.; Alfenas, Acelino C.; Peever, Tobin L.; Hanna, John W.; Uchida, Janice Y.; Hauff, Rob D.; Kadooka, Chris Y.; Kim, Mee-Sook; Cannon, Phil G.; Namba, Shigetou; Minato, Nami; Simeto, Sofia; Perez, Carlos A.; Rayamajhi, Min B.; Moran, Mauricio; Lodge, D. Jean; Arguedas, Marcela; Medel-Ortiz, Rosario; Lopez-Ramirez, M. Armando; Tennant, Paula; Glen, Morag; McTaggart, Alistair; Klopfenstein, Ned B. 2018. Genetic and genotypic diversity of Puccinia psidii - the cause of guava/eucalypt/myrtle rust - and preliminary predictions of global areas at risk. In: Schoettle, Anna W.; Sniezko, Richard A.; Kliejunas, John T., eds. Proceedings of the IUFRO joint conference: Genetics of five-needle pines, rusts of forest trees, and Strobusphere; 2014 June 15-20; Fort Collins, CO. Proc. RMRS-P-76. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 186-173.

Publication Notes

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https://www.fs.usda.gov/treesearch/pubs/56431