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Discovery of cryptic Armillaria solidipes genotypes within the Colorado Plateau


Hanna, J. W.; Klopfenstein, N. B.; Kim, M. -S.; Ashiglar, S. M.; Ross-Davis, A. L.; McDonald, G. I. 2012. Discovery of cryptic Armillaria solidipes genotypes within the Colorado Plateau. In: Zeglen, S.; Palacios, P., comps. Proceedings of 59th Annual Western International Forest Disease Work Conference; 2011 October 11-14; Leavenworth, WA. Portland, OR: U.S. Department of Agriculture, Forest Service, Forest Health Protection, Region 5. p. 145-148.

Armillaria solidipes (= A. ostoyae) is a root-disease pathogen that causes severe losses in growth and productivity of forest trees throughout the Northern Hemisphere. This species is genetically diverse with variable disease activities across different regions of the world. In North America, A. solidipes in the Colorado Plateau exists in drier habitats and causes more disease on hardwoods in comparison with A. solidipes in the northwestern USA (McDonald 1999). Here, we address 1) the discovery of cryptic genotypes of A. solidipes located within or near the Colorado Plateau region, 2) the analytical issues associated with rDNA sequences containing high levels of heterogeneity, and 3) the significance of these cryptic A. solidipes genotypes.

Keywords: Armillaria solidipes, genotypes, Colorado Plateau


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Title: RMRS Other Publications: Discovery of cryptic Armillaria solidipes genotypes within the Colorado Plateau
Electronic Publish Date: November 9, 2012
Last Update:
November 9, 2012

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