Imperial College London
Michael J Jeger

Michael J Jeger

Faculty of Natural Sciences, Department of Life Sciences (Silwood Park)

Emeritus Professor of Horticulture
 
 
 
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Contact

 

+44 (0)1398 332 941m.jeger Website

 
 
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Location

 

Home working 13 Brook Street, Bampton, Devon EX16 9LUSilwood ParkSilwood Park

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Summary

 

Publications

Citation

BibTex format

@article{Hamelin:2017:10.1016/j.virusres.2017.04.011,
author = {Hamelin, FM and Hilker, FM and Sun, TA and Jeger, MJ and Hajimorad, MR and Allen, LJS and Prendeville, HR},
doi = {10.1016/j.virusres.2017.04.011},
journal = {Virus Research},
pages = {77--87},
title = {The evolution of parasitic and mutualistic plant-virus symbioses through transmission-virulence trade-offs.},
url = {http://dx.doi.org/10.1016/j.virusres.2017.04.011},
volume = {241},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Virus-plant interactions range from parasitism to mutualism. Viruses have been shown to increase fecundity of infected plants in comparison with uninfected plants under certain environmental conditions. Increased fecundity of infected plants may benefit both the plant and the virus as seed transmission is one of the main virus transmission pathways, in addition to vector transmission. Trade-offs between vertical (seed) and horizontal (vector) transmission pathways may involve virulence, defined here as decreased fecundity in infected plants. To better understand plant-virus symbiosis evolution, we explore the ecological and evolutionary interplay of virus transmission modes when infection can lead to an increase in plant fecundity. We consider two possible trade-offs: vertical seed transmission vs infected plant fecundity, and horizontal vector transmission vs infected plant fecundity (virulence). Through mathematical models and numerical simulations, we show (1) that a trade-off between virulence and vertical transmission can lead to virus extinction during the course of evolution, (2) that evolutionary branching can occur with subsequent coexistence of mutualistic and parasitic virus strains, and (3) that mutualism can out-compete parasitism in the long-run. In passing, we show that ecological bi-stability is possible in a very simple discrete-time epidemic model. Possible extensions of this study include the evolution of conditional (environment-dependent) mutualism in plant viruses.
AU  - Hamelin,FM
AU  - Hilker,FM
AU  - Sun,TA
AU  - Jeger,MJ
AU  - Hajimorad,MR
AU  - Allen,LJS
AU  - Prendeville,HR
DO  - 10.1016/j.virusres.2017.04.011
EP  - 87
PY  - 2017///
SN  - 0168-1702
SP  - 77
TI  - The evolution of parasitic and mutualistic plant-virus symbioses through transmission-virulence trade-offs.
T2  - Virus Research
UR  - http://dx.doi.org/10.1016/j.virusres.2017.04.011
UR  - http://hdl.handle.net/10044/1/56387
VL  - 241
ER  -
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