Claim · model-written summary
Weedy populations were intermediate in growth rate, root architecture and drought tolerance.
- Taxon
- sunflower
Helianthus annuuse1 - Material
- Weedy populationse0
- Outcome
- plant growth rate, root architecture, and drought tolerancee0
- Direction
- intermediatee0
- Comparator
- domesticated cultivars and native ruderal populationse0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weedy populations were intermediate between domesticated cultivars and native ruderal populations for plant growth rate, root architecture, and drought tolerance.”
e1“common sunflower (Helianthus annuus)”
Title
Liz Koziol; Loren H. Rieseberg; Nolan Kane; et al. Evolution 2012. doi:10.1111/j.1558-5646.2012.01718.x
Other claims from this paper (8)
- Observation Domesticated cultivars were less drought tolerant than wild populations.
- Observation Domesticated cultivars had higher growth and fecundity than wild populations.
- Observation Domesticated cultivars had coarser roots than wild populations.
- Observation Drought tolerance did not change between improved cultivars and ancient landraces.
- Observation Recent selection increased allocation to flowers.
- Intervention effect Mycorrhizal inoculation gave weedy populations fewer wilted leaves.
- Intervention effect Mycorrhizal inoculation gave weedy populations wetter soil.
- Mechanism The authors infer tradeoffs between drought tolerance and growth, flowering allocation and root architecture during sunflower domestication and invasion.