Claim · model-written summary
Twelve host resistance genes correspond to twelve pathogen virulence genes.
- Taxon
- Lactuca sativa
Lactuca sativae1 - Interactor
- Bremia lactucae
Bremia lactucaee1pathogen - Outcome
- Twelve resistance genes of the host are matched by twelve genes for virulence in the pathogene0
- Value
- Twelve resistance genese0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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Verbatim
e0“Twelve resistance genes of the host are matched by twelve genes for virulence in the pathogen”
e1“Lactuca sativa and Bremia lactucae”
Title
M. Gustafsson; M. Arhammer; I. Gustavsson Journal of Phytopathology 1983. doi:10.1111/j.1439-0434.1983.tb00595.x
Other claims from this paper (5)
- Observation The Lactuca sativa–Bremia lactucae interaction fits a gene-for-gene model.
- Observation Bremia virulence frequencies change drastically and vary greatly within subpopulations.
- Observation Bremia sexual recombination probably occurs frequently in lettuce crops.
- Observation Variation is consistent with a diploid outcrossing organism with frequent recombination.
- Mechanism High frequencies of unnecessary virulence genes are probably due to linkage with necessary virulence genes.