NDLI: Adaptive potential of ash (Fraxinus excelsior) populations against the novel emerging pathogen Hymenoscyphus pseudoalbidus

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Adaptive potential of ash (Fraxinus excelsior) populations against the novel emerging pathogen Hymenoscyphus pseudoalbidus

Content Provider	PubMed Central
Author	Kjær, Erik Dahl Mckinney, Lea Vig Nielsen, Lene Rostgaard Hansen, Lars Nørgaard Hansen, Jon Kehlet
Copyright Year	2011
Abstract	An emerging infectious pathogen Hymenoscyphus pseudoalbidus has spread across much of Europe within recent years causing devastating damage on European common ash trees (Fraxinus excelsior) and associated plant communities. The present study demonstrates the presence of additive genetic variation in susceptibility of natural F. excelsior populations to the new invasive disease. We observe high levels of additive variation in the degree of susceptibility with relatively low influence of environmental factors (narrow-sense heritability = 0.37–0.52). Most native trees are found to be highly susceptible, and we estimate that only around 1% has the potential of producing offspring with expected crown damage of <10% under the present disease pressure. The results suggest that the presence of additive genetic diversity in natural F. excelsior populations can confer the species with important ability to recover, but that low resistance within natural European populations is to be expected because of a low frequency of the hypo-sensitive trees. Large effective population sizes will be required to avoid genetic bottlenecks. The role of artificial selection and breeding for protection of the species is discussed based on the findings.
Related Links	http://dx.doi.org/10.1111/j.1752-4571.2011.00222.x
Ending Page	228
Page Count	10
Starting Page	219
File Format	PDF
ISSN	17524571
e-ISSN	17524571
Journal	Evolutionary Applications
Issue Number	3
Volume Number	5
Language	English
Publisher	Blackwell Publishing Ltd
Publisher Date	2012-04-01
Access Restriction	Open
Rights Holder	Blackwell Publishing Ltd
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Genetics Ecology, Evolution, Behavior and Systematics

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Data from: Adaptive potential of ash (Fraxinus excelsior) populations against the novel emerging pathogen Hymenoscyphus pseudoalbidus (Dataset)

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