NDLI: Virulence evolution through a latency-transmission trade-off Implications as to the durability of resistance in agriculture

Content Provider	IEEE Xplore Digital Library
Author	Hamelin, F.M.
Copyright Year	2009
Description	Author affiliation: UMR INRA-AGROCAMPUS OUESTUniversité de Rennes 1: BiO3P, Écologie et sciences phytosanitaires, 65 rue de Saint Brieuc, CS 84215, 35042 Cedex, France (Hamelin, F.M.)
Abstract	In evolutionary epidemiology, most of the existing models address virulence evolution through a transmission-virulence trade-off. Although some models consider a coupling with other host-parasite interaction features such as clearance, there seem to be no model considering a coupling with a trait which is however often measured, and may have some lifehistorical significance: the latent period. In this note, we use a simple model that explicitly incorporates the latent period to gain some insight into the virulence evolution determinants. We discuss the model's implications as to the durability of resistance in agriculture. In particular, we show that an anti-growth-rate resistance may, contrarily to the classical insight, lower intrinsic virulence. This is because latency, as an additional “degree of freedom”, may absorb what would otherwise result in an virulence increase towards less resistant hosts. Moreover, this goes with a greater healthy host density, regardless whether the crop is resistant or not, thanks to maladaptation.
Starting Page	333
Ending Page	338
File Size	358801
Page Count	6
File Format	PDF
ISBN	9781424441761
DOI	10.1109/GAMENETS.2009.5137418
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-13
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Couplings Biological system modeling Crops Agriculture Robustness Internet Electrical resistance measurement Game theory Delay Immune system
Content Type	Text
Resource Type	Article

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