Claim · model-written summary
Male fruit set depended on shoot status and plant genotype.
- Material
- genotype of the plante0
- Organ / stage
- individual shootse0
- Outcome
- Fruit set on malese0
- Direction
- dependente0
Not reportedTaxonGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Verbatim
e0“Fruit set on males varies much more than that on females, and is dependent on both the status of individual shoots and the genotype of the plant.”
Title
The evolution and maintenance of gender dimorphism in New Zealand Hebe (Scrophulariaceae).
Delph, Lynda F. University of Canterbury Research Repository (University of Canterbury) 1988. doi:10.26021/8529
Other claims from this paper (18)
- Observation The authors postulated four separate origins of gender dimorphism in Hebe.
- Observation Nuclear genes partly control gender in one Hebe species.
- Observation Most Hebe species are self-compatible.
- Observation H. subalpina exhibited inbreeding depression.
- Association Female frequency declined with fruit set on the polleniferous morph.
- Association Gender dimorphism correlated with altitude.
- Mechanism The authors hypothesized that higher-altitude self-pollination favored separate sexes.
- Observation Female frequency varied greatly among H. strictissima populations.
- Association In H. strictissima, female frequency declined as relative male seed fitness rose.
- Association Male fruit set varied strongly with plant vigour within and among plants and populations.
- Association Female fruit set was not correlated with plant vigour.
- Observation Female fruit set varied less among populations.
- Association Female plants were more prevalent at poor sites with low male seed fitness.
- Observation Male H. subalpina received less than four per cent of fitness through ovules.
- Observation H. subalpina was near the dioecy end of gynodioecy.
- Observation Male fruit set varied more than female fruit set.
- Observation Resource allocation patterns differed by sex.
- Mechanism The authors interpreted sex-specific resource allocation as reflecting fitness pathways.