Claim · model-written summary
Environmental variation alone cannot explain phenotypic differences in Phlox longifolia across 102 populations.
- Taxon
- Phlox longifolia
Phlox longifoliae2 - Material
- 102 populationse3
- Outcome
- phenotypic differencese3
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“a natural polymorphism in Phlox longifolia involving the ancestral single-ovulate strategy”
e3“I show that environmental variation alone cannot explain the phenotypic differences observed across 102 populations”
Title
Evolution of discrete reproductive strategies in Phlox (Polemoniaceae)
Bickner, Bridget Marie Digital Access to Scholarship at Harvard (DASH) (Harvard University) 2026
Other claims from this paper (5)
- Mechanism A shift early in development in the ovule-to-ovary size allometry governs the transition from single- to multi-ovulate state in Phlox.
- Association A larger ovary yields a larger, single seed in the other developmental trajectory.
- Mechanism A single mechanism appears to underlie variation in the size and number of both seeds and ovules (author interpretation).
- Observation Most measured traits in the Phlox drummondii x P. roemeriana F2 population show unimodal distributions, consistent with multiple loci.
- Association Ovary size, ovule number, flower size and flower number are significantly correlated among F2 plants.