From generalist to specialists: Variation in the host range and performance of anther‐smut pathogens on Dianthus *
| Autor: | Emily Bruns, Janis Antonovics, Michael E. Hood |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Infectivity biology Host (biology) Range (biology) Basidiomycota Dianthus Zoology Reproductive isolation Plants biology.organism_classification Generalist and specialist species 010603 evolutionary biology 01 natural sciences Host Specificity 03 medical and health sciences 030104 developmental biology Genetics General Agricultural and Biological Sciences Microbotryum Pathogen Ecology Evolution Behavior and Systematics Plant Diseases |
| Zdroj: | Evolution. 75:2494-2508 |
| ISSN: | 1558-5646 0014-3820 |
| Popis: | Determining the processes that drive the evolution of pathogen host range can inform our understanding of disease dynamics and the potential for host shifts. In natural populations, patterns of host range could be driven by genetically based differences in pathogen infectivity or ecological differences in host availability. In northwestern Italy, four reproductively isolated lineages of the fungal plant-pathogen Microbotryum have been shown to co-occur on several species in the genus Dianthus. We carried out cross-inoculation experiments to determine whether patterns of realized host range in these four lineages were driven by differences in infectivity and to test whether there was evidence of a trade-off between host range and within-host reproduction. We found strong concordance between field patterns of host range and pathogen infectivity on different Dianthus species using experimental inoculation, indicating that infection ability is a major driving force of host range. However, we found no evidence of a trade-off between the ability to infect a wider range of host species and spore production on a shared host. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text