Claim · model-written summary
Phytophthora palmivora isolates from Colombian cacao showed high genotypic diversity (Simpson index 0.99).
- Taxon
- Cacao
Theobroma cacaot0 - Interactor
- Phytophthora palmivora
.jpg?width=60)
Phytophthora palmivorat0pathogen - Outcome
- genotypic diversitye0
- Value
- 0.99e0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“High genotypic diversity was observed (Simpson's index = 0.99)”
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 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.
- Recommendation The authors recommend considering pathogen diversity in resistance breeding programs.