Evol Ecol Res 10: 913-924 (2008) Full PDF if your library subscribes.
Trade-off between latent period and transmission success of a plant pathogen revealed by phenotypic correlations
Virginie Héraudet, Lucie Salvaudon* and Jacqui A. Shykoff
Laboratoire Ecologie Systématique et Evolution, Université Paris-Sud, Orsay, France
Correspondence: V. Héraudet, Laboratoire Ecologie Systématique et Evolution, Université Paris-Sud, UMR 8079, Orsay cedex 91405, France.
Questions: Can trade-offs and genotype–environment interactions maintain variability for fitness-related life-history traits?
Hypothesis: Transmission success, the equivalent of fecundity, is traded off against minimizing the latent period, the equivalent of age at maturity.
Organisms: The non-lethal parasite Hyaloperonospora arabidopsis (= Hyaloperonospora parasitica) and its host plant Arabidopsis thaliana.
Methods: We measured the latent period, transmission success, and host seed production of all combinations of infections between three parasite strains and three host lines, allowing us to calculate phenotypic correlations between these parasite traits and determine the relationship between host and parasite traits.
Conclusions: Infected plants that sporulated more rapidly (short latent period) transmitted their parasites less well, revealing a phenotypic trade-off between these important parasite life-history traits. This phenotypic trade-off may help to explain why the latent period remains variable in nature and has not achieved a uniformly minimal value.
Keywords: Arabidopsis thaliana, genotype–environment interactions, host–parasite interactions, Hyaloperonospora arabidopsis, Hyaloperonospora parasitica, Peronospora, phenotypic trade-off.
DOWNLOAD A FREE, FULL PDF COPY
IF you are connected using the IP of a subscribing institution (library, laboratory, etc.)
or through its VPN.
© 2008 Virginie Héraudet. All EER articles are copyrighted by their authors. All authors endorse, permit and license Evolutionary Ecology Ltd. to grant its subscribing institutions/libraries the copying privileges specified below without additional consideration or payment to them or to Evolutionary Ecology, Ltd. These endorsements, in writing, are on file in the office of Evolutionary Ecology, Ltd. Consult authors for permission to use any portion of their work in derivative works, compilations or to distribute their work in any commercial manner.
Subscribing institutions/libraries may grant individuals the privilege of making a single copy of an EER article for non-commercial educational or non-commercial research purposes. Subscribing institutions/libraries may also use articles for non-commercial educational purposes by making any number of copies for course packs or course reserve collections. Subscribing institutions/libraries may also loan single copies of articles to non-commercial libraries for educational purposes.
All copies of abstracts and articles must preserve their copyright notice without modification.