Next Article in Journal
The Effects of Climate Change on the Development of Tree Plantations for Biodiesel Production in China
Next Article in Special Issue
Dispersal and Propagule Pressure of Botryosphaeriaceae Species in a Declining Oak Stand is Affected by Insect Vectors
Previous Article in Journal
Insights on Forest Structure and Composition from Long-Term Research in the Luquillo Mountains
Previous Article in Special Issue
Tree Diseases as a Cause and Consequence of Interacting Forest Disturbances
Open AccessArticle

Short Rotations in Forest Plantations Accelerate Virulence Evolution in Root-Rot Pathogenic Fungi

BIOGECO, INRA, Univ. Bordeaux, 33610 Cestas, France
*
Author to whom correspondence should be addressed.
Academic Editors: Matteo Garbelotto, Paolo Gonthier and Timothy A. Martin
Forests 2017, 8(6), 205; https://doi.org/10.3390/f8060205
Received: 7 April 2017 / Revised: 6 June 2017 / Accepted: 6 June 2017 / Published: 10 June 2017
(This article belongs to the Special Issue Forest Pathology and Plant Health)
As disease outbreaks in forest plantations are causing concern worldwide, a clear understanding of the influence of silvicultural practices on the development of epidemics is still lacking. Importantly, silvicultural practices are likely to simultaneously affect epidemiological and evolutionary dynamics of pathogen populations. We propose a genetically explicit and individual-based model of virulence evolution in a root-rot pathogenic fungus spreading across forest landscapes, taking the Armillaria ostoyae–Pinus pinaster pathosystem as reference. We used the model to study the effects of rotation length on the evolution of virulence and the propagation of the fungus within a forest landscape composed of even-aged stands regularly altered by clear-cutting and thinning operations. The life cycle of the fungus modeled combines asexual and sexual reproduction modes, and also includes parasitic and saprotrophic phases. Moreover, the tree susceptibility to the pathogen is primarily determined by the age of the stand. Our simulations indicated that the shortest rotation length accelerated both the evolution of virulence and the development of the epidemics, whatever the genetic variability in the initial fungal population and the asexuality rate of the fungal species View Full-Text
Keywords: forestry; tree fungal pathogen; root-rot disease; Heterobasidion annosum; Ganoderma boninense; evolutionary epidemiology; quantitative host–pathogen interaction; asexuality; clonality; saprotrophism forestry; tree fungal pathogen; root-rot disease; Heterobasidion annosum; Ganoderma boninense; evolutionary epidemiology; quantitative host–pathogen interaction; asexuality; clonality; saprotrophism
Show Figures

Figure 1

MDPI and ACS Style

Soularue, J.-P.; Robin, C.; Desprez-Loustau, M.-L.; Dutech, C. Short Rotations in Forest Plantations Accelerate Virulence Evolution in Root-Rot Pathogenic Fungi. Forests 2017, 8, 205.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop