Claim · model-written summary
Surviving basal embryos became lighter seeds than stylar embryos.
- Taxon
- beanse0
- Organ / stage
- embryos in basal ovular positionse0
- Outcome
- lighter seedse0
- Direction
- lightere0
- Comparator
- stylar embryose0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Verbatim
e0“For naturally selfed flowers of domesticated and wild beans, embryos in basal ovular positions were more likely to abort or, if they survived, become lighter seeds than stylar embryos.”
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.
- 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.
- Mechanism Paternal-parent differences implicated a genetic contribution to position effects.
- Association Large seeds produced larger juvenile plants than small seeds.