Claim · model-written summary
Paternal-parent differences implicated a genetic contribution to position effects.
- Taxon
- Phaseolus vulgaris
Phaseolus vulgarist0 - Outcome
- observed position effectse0
- Qualifier
- genetic componente0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This difference among paternal parents implicates a genetic component to the observed position effects.”
t0“PHASEOLUS VULGARIS”
Title
Robert R. Nakamura American Journal of Botany 1988. doi:10.1002/j.1537-2197.1988.tb08807.x
Other claims from this paper (8)
- Observation Basal embryos in selfed wild and domesticated bean flowers aborted more often than stylar embryos.
- Observation Surviving basal embryos became lighter seeds than stylar embryos.
- Intervention effect Cultivar embryo survivorship was higher when maternal plants grew in larger pots.
- Observation Early seed abortion in the cultivar was random with respect to ovule position.
- Observation Late abortion mortality was higher for basal than stylar embryos.
- Observation Basal embryos developed adult organs in embryo culture, indicating no gross genetic defects.
- Intervention effect More outbred cultivar crosses eliminated positional effects on embryo survival and seed size.
- Association Large seeds produced larger juvenile plants than small seeds.