Claim · model-written summary
More outbred cultivar crosses eliminated positional effects on embryo survival and seed size.
- Taxon
- Phaseolus vulgaris
Phaseolus vulgarist0 - Treatment
- more outbred crosses with the cultivare0
- Outcome
- position effect in embryo survivorship and sizee0
- Direction
- disappearede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In more outbred crosses with the cultivar the position effect in embryo survivorship and size disappeared.”
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.
- Mechanism Paternal-parent differences implicated a genetic contribution to position effects.
- Association Large seeds produced larger juvenile plants than small seeds.