Claim · model-written summary
As salinity increased, the diploid growth advantage over tetraploids diminished.
- Taxon
- Spirodela polyrhiza
Spirodela polyrhizat0 - Treatment
- salinity increasede0
- Outcome
- diploid growth advantagee0
- Direction
- diminishede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“As salinity increased, the diploid growth advantage diminished, and tetraploids frequently matched or exceeded diploid growth rates”
t0“Spirodela polyrhiza”
Title
Repeatability of phenotypic consequences due to whole‐genome duplication in Spirodela polyrhiza
Frederik Mortier; Quinten Bafort; Dries Bonte; et al. New Phytologist 2026. doi:10.1111/nph.71256
Other claims from this paper (7)
- Intervention effect In benign conditions diploid Spirodela polyrhiza grew faster than tetraploids.
- Intervention effect In benign conditions tetraploids had larger, thicker fronds than diploids.
- Association As salinity increased, tetraploids frequently matched or exceeded diploid growth rates.
- Association Ploidy per se explained a comparable amount of phenotypic variation in growth as the genotypic background.
- Association Ploidy per se explained substantially more variation in salt tolerance than the genotypic background.
- Observation There was evidence of rare within-genotype stochastic differences between tetraploids.
- Observation The phenotypic consequences of genome doubling in Spirodela polyrhiza are highly repeatable and largely deterministic.