Spatial eco-evolutionary feedback in plant-pathogen interactions

Ayco J. M. Tack, Anna-Liisa Laine
2013 European journal of plant pathology  
In recent years the potential for evolutionary change to drive ecological dynamics, and vice versa, has been widely recognized. However, the convincing examples of eco-evolutionary dynamics mainly stem from highly artificial experimental systems, with conspicuously few examples contributed by field systems. While rarely considered in the eco-evolutionary literature, the gene-for-gene hypothesis inherently recognizes the tight link between evolutionary and ecological dynamics. The boom-and-bust
more » ... ynamics of some agricultural pathogens are an extreme demonstration of this. In this perspective, we place plant-pathogen systems in a spatial eco-evolutionary framework, which recognizes that ecology and evolution are tightly linked, take place at the same time scale and are strongly influenced by spatial structure. Specifically, we: i) exemplify how the ecological process of dispersal modifies rapid local coevolutionary dynamics and thereby shapes spatial variation in resistance, infectivity, and local adaptation; and ii) illustrate how the outcome of coevolution (spatial distribution in resistance, infectivity and local adaptation) drives ecological metapopulation processes. Overall, we conclude that both agricultural and wild pathosystems provide a unique illustration of the high relevance of spatial eco-evolutionary feedback in understanding species interactions. Keywords Coevolution . Eco-evolutionary dynamics . Eco-evolutionary feedback . Host-pathogen interactions . Metapopulation . Pathosystem (Hairston et al. 2005) . However, it is becoming increasingly clear that evolutionary change can be extremely rapid, and there are compelling examples of this in a diversity of traits ranging from life-histories to behaviour Eur J Plant Pathol
doi:10.1007/s10658-013-0353-x fatcat:pa6n5kcgnbhwjfsddutdzxqqdi