Population genomic analyses of the brown root-rot pathogen, Phellinus noxius, examine potential invasive spread among Pacific islandsAuthor(s): Jane E. Stewart; Mee-Sook Kim; Louise Shuey; Norio Sahashi; Yuko Ota; Robert L. Schlub; Phil G. Cannon; Ned B. Klopfenstein
Source: In: Ramsey, Amy; Palacios, Patsy, comps. Proceedings of the 63rd Annual Western International Forest Disease Work Conference; September 21-25, 2015; Newport, OR. Olympia, WA: Washington Department of Natural Resources; Logan, UT: Utah State University, Quinney College of Natural Resources. p. 151-153.
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Scientists Analyze Distribution and Genetic Diversity of the Invasive Brown Root-rot Pathogen
Phellinus noxius (Corner) G. H. Cunn is a vastly destructive, fast-growing fungal pathogen that affects a wide range of woody hosts in pan-tropical areas, including Asia, Australia, Africa, and Oceania (Ann et al. 2002; Figure 1) . This pathogen causes brown root-rot disease on cacao, coffee, and rubber, as well as diverse fruit, nut, ornamental, and other native/exotic trees, with little indication of host specificity (Sahashi et al. 2010). Pathogenic symptoms of P. noxius infection can include reduced tree growth, defoliation, and branch dieback; however, P. noxius can survive as a saprophyte by colonizing heartwood and/or other organic matter. Brown root-rot disease can develop over several years, or in some cases, P. noxius infection can cause tree mortality within a year. Understanding the genetic diversity and evolutional history of P. noxius populations worldwide well help assess the evolutionary origins, worldwide movement, and potential ecological differences within P. noxius.
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Stewart, Jane E.; Kim, Mee-Sook; Shuey, Louise; Sahashi, Norio; Ota, Yuko; Schlub, Robert L.; Cannon, Phil G.; Klopfenstein, Ned B. 2016. Population genomic analyses of the brown root-rot pathogen, Phellinus noxius, examine potential invasive spread among Pacific islands. In: Ramsey, Amy; Palacios, Patsy, comps. Proceedings of the 63rd Annual Western International Forest Disease Work Conference; September 21-25, 2015; Newport, OR. Olympia, WA: Washington Department of Natural Resources; Logan, UT: Utah State University, Quinney College of Natural Resources. p. 151-153.
Keywordsforest disease, brown root-rot pathogen, Phellinus noxius, fungi
- Phylogenetic and population analyses of the invasive brown root-rot pathogen (Phellinus noxius) highlight the existence of at least two distinct populations
- Accelerating dynamic genetic conservation efforts: Use of FT-IR spectroscopy for the rapid identification of trees resistant to destructive pathogens
- A preliminary bioclimatic approach to predicting potential distribution of Phellinus noxious and geographical areas at risk from invasion
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