Claim · model-written summary
The authors recommend considering pathogen diversity in resistance breeding programs.
- Taxon
- Cacao
Theobroma cacaot0 - Interactor
- Phytophthora palmivora
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Phytophthora palmivorat0pathogen - Outcome
- consideration of pathogen diversity in resistance breeding programse0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“consideration of pathogen diversity in resistance breeding programs”
t0“Phytophthora palmivora in Colombian Cacao”
Title
Julie Ramirez Martinez; Martha Cárdenas; Jorge Duitama; et al. Phytopathology 2026. doi:10.1094/phyto-10-25-0351-r
Other claims from this paper (9)
- Observation Phytophthora palmivora isolates from Colombian cacao showed high genotypic diversity (Simpson index 0.99).
- Observation Corrected association index analysis indicated predominantly clonal reproduction of P. palmivora isolates.
- Observation All P. palmivora isolates were of the A2 mating type.
- Observation Discriminant analysis of principal components identified seven genetic clusters among the isolates.
- Association The genetic clusters showed no correlation with geographic distribution.
- Observation Mantel tests found no isolation-by-distance (r = 0.004, P = 0.650).
- Observation Pathogenicity tests on detached CCN51 leaves showed extensive virulence variation independent of genetic clustering or geography.
- Mechanism The authors conclude that the observed genetic diversity results from multiple pathogen introductions and anthropogenic dispersal rather than geographic barriers.
- Recommendation The authors recommend stringent phytosanitary measures to prevent further introductions of the pathogen.