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    Author(s): Bryce A. RichardsonMee-Sook KimNed B. Klopfenstein; Yuko Ota; Kwan Soo Woo; Richard C. Hamelin
    Date: 2009
    Source: In: Noshad David; Noh Eun Woon; King, John; Sniezko, Richard A., eds. Breeding and Genetic Resources of Five-Needle Pines. Proceedings of the Conference 2008, Yangyang, Korea. Seoul, Korea: Korea Forest Research Institute. p. 56-60.
    Publication Series: Paper (invited, offered, keynote)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (588.66 KB)

    Description

    Presently, little is known about the worldwide genetic structure, diversity, or evolutionary relationships of the white-pineblister-rust fungus, Cronartium ribicola. A collaborative international effort is underway to determine the phylogeographic relationships among Asian, European, and North American sources of C. ribicola and closely related taxa. Here, we present preliminary information on phylogenetic relationships among selected Eurasian and North American populations of C. ribicola using DNA sequences from four nuclear loci totaling over 2,100 bp. Geographic regions included eastern and western North America, northern Germany, Korea, Japan, and northeastern China. Phylogenetic and network analyses suggest C. ribicola comprises at least three distinct clades. Isolates from Korea and China formed one clade, and Japanese isolates formed a second clade that was intermediate the third clade, which comprised isolates from USA and Germany. Identifying the evolutionary relationships and potential origin(s) of C. ribicola that spread through Eurasia and North America, and determining the phylogenetic relationships of its hosts are critical toward understanding this pathogen's native ecology. Such information will help evaluate risks of cryptic introductions, contribute to the development of biological controls, identify sources of host resistance and develop appropriate regulatory practices.

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    Citation

    Richardson, Bryce A.; Kim, Mee-Sook; Klopfenstein, Ned B.; Ota, Yuko; Woo, Kwan Soo; Hamelin, Richard C. 2009. Tracking the footsteps of an invasive plant pathogen: Intercontinental phylogeographic structure of the white-pine-blister-rust fungus, Cronartium ribicola. In: Noshad David; Noh Eun Woon; King, John; Sniezko, Richard A., eds. Breeding and Genetic Resources of Five-Needle Pines. Proceedings of the Conference 2008, Yangyang, Korea. Seoul, Korea: Korea Forest Research Institute. p. 56-60.

    Keywords

    Cronartium ribicola, invasive, phylogeographic relationships

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https://www.fs.usda.gov/treesearch/pubs/34671