You are here: Home
/ Publication Information
Title: North American populations of Entoleuca mammata are genetically more variable than populations in Europe
Author: Kasanen, Risto; Hantula, Jarkko; Ostry, Michael; Pinon, Jean; Kurkela, Timo
Source: Mycol. Res. 108(7):766-774
Description: Entoleuca mammata (syn. Hypoxylon mammatum) is a damaging pathogen of Populus tremuloides and P. grandidentata in North America and P. tremula in Europe, where the fungus occurs only sporadically in alpine regions and Scandinavia. It has been hypothesized that E. mammata was introduced to Europe from North America. In this study, E. mammata isolates collected from Europe and North America were compared by a sequence analysis of two DNA markers derived from DNA fingerprints. The objective of the study was to elucidate the relationship between North American and European E. mammata populations by testing two hypotheses: (1) North American and European isolates are conspecific; and (2) the fungus was introduced between continents causing both a founder effect and a genetic bottleneck. North American populations were found to be more polymorphic, but no major phylogenetic differences between fungal isolates collected from different continents were found. This result combined with the historical observations of the disease in Europe implies that E. mammata was introduced to Europe several centuries ago.
View or Print this Publication (936 KB)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
Kasanen, Risto; Hantula, Jarkko; Ostry, Michael; Pinon, Jean; Kurkela, Timo 2004. North American populations of Entoleuca mammata are genetically more variable than populations in Europe. Mycol. Res. 108(7):766-774
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility