Claim · model-written summary
The authors conclude that C. virginica appears able to tolerate transitions from one cytological type to another.
- Taxon
- C. virginica
Claytonia virginicae0 - Outcome
- tolerate transitions from one cytological type to anothere0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“From all the evidence, C. virginica appears to be able to tolerate transitions from one cytological type to another”
Title
Aneuploidy in Claytonia virginica
Norman V. Rothwell American Journal of Botany 1959. doi:10.2307/2439195
Other claims from this paper (7)
- Observation An extensive aneuploid series with chromosome numbers from 2n = 12 to 2n = 72 was found within Claytonia virginica.
- Observation A single population of Claytonia virginica could contain individuals that differ in chromosome number.
- Observation Pollen fertility appeared high in natural populations and in plants with meiotic irregularities.
- Observation Different karyotypes occurred within the taxon, and plants with the same chromosome number could have different karyotypes.
- Observation Hybrids were obtained by crossing plants that differed in both chromosome number and karyotype.
- Observation The authors propose that most chromosome numbers derive from a haploid complement of 8 chromosomes with median centromeres.
- Mechanism Nondisjunction, univalent lagging, misdivision of univalents, polyploidy and fertile triploids are suggested to account for the origin of the different chromosome numbers.