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Updated: Dec 2, 2025

Dissecting Host-virus Interaction in Lytic Replication of a Model Herpesvirus
Published on: October 7, 2011
Intraspecific host variation plays a key role in virus community assembly
Suvi Sallinen1, Anna Norberg2, Hanna Susi3
1Organismal and Evolutionary Biology Research Programme, Viikinkaari 1 (PO box 65), FI-00014, University of Helsinki, Helsinki, Finland. suvi.sallinen@helsinki.fi.
Abstract:
Infection by multiple pathogens of the same host is ubiquitous in both natural and managed habitats. While intraspecific variation in disease resistance is known to affect pathogen occurrence, how differences among host genotypes affect the assembly of pathogen communities remains untested. In our experiment using cloned replicates of naive Plantago lanceolata plants as sentinels during a seasonal virus epidemic, we find non-random co-occurrence patterns of five focal viruses. Using joint species distribution modelling, we attribute the non-random virus occurrence patterns primarily to differences among host genotypes and local population context. Our results show that intraspecific variation among host genotypes may play a large, previously unquantified role in pathogen community structure.
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