Life-history correlations change under coinfection leading to higher pathogen load

Show full item record



Permalink

http://hdl.handle.net/10138/297085

Citation

Laine , A-L & Makinen , H 2018 , ' Life-history correlations change under coinfection leading to higher pathogen load ' , Evolution Letters , vol. 2 , no. 2 , pp. 126-133 . https://doi.org/10.1002/evl3.48

Title: Life-history correlations change under coinfection leading to higher pathogen load
Author: Laine, Anna-Liisa; Makinen, Hannu
Contributor: University of Helsinki, Ecology and Evolutionary Biology
University of Helsinki, Ecology and Evolutionary Biology
Date: 2018-04
Language: eng
Number of pages: 8
Belongs to series: Evolution Letters
ISSN: 2056-3744
URI: http://hdl.handle.net/10138/297085
Abstract: The ability of a parasite strain to establish and grow on its host may be drastically altered by simultaneous infection by other parasite strains. However, we still lack an understanding of how life-history allocations may change under coinfection, although life-history correlations are a critical mechanism restricting the evolutionary potential and epidemiological dynamics of pathogens. Here, we study how life-history stages and their correlations change in the obligate fungal pathogen Podosphaera plantaginis under single infection and coinfection scenarios. We find increased pathogen loads under coinfection, but this is not explained by an enhanced performance at any of the life-history stages that constitute infections. Instead, we show that under coinfection the correlation between timing of sporulation and final pathogen load becomes positive. The changes in pathogen life-history allocations leading to more severe infections under coinfection can have far-reaching epidemiological consequences, as well as implication for our understanding of the evolution of virulence.
Subject: Disease biology
evolution of virulence
host genotype
host-pathogen interactions
life-history theory
pathogen genotype
virulence
DIVERSE MALARIA INFECTIONS
TRADE-OFFS
PARASITE VIRULENCE
MULTIPLE INFECTION
DISEASE DYNAMICS
EVOLUTION
METAPOPULATION
GENOTYPE
AGGRESSIVENESS
CONSEQUENCES
1181 Ecology, evolutionary biology
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
Laine_et_al_2018_Evolution_Letters.pdf 373.3Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record