Claim · model-written summary
No supernumerary chromosomes were observed in Arceuthobium.
- Taxon
- Arceuthobium
Arceuthobiume3 - Outcome
- supernumerary chromosomese3
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“No supernumerary chromosomes, sometimes present in Phoradendron , were observed in Arceuthobium”
Title
CHROMOSOMAL AND FLOWERING CHARACTERISTICS IN DWARF MISTLETOES (ARCEUTHOBIUM)
Delbert Wiens American Journal of Botany 1968. doi:10.1002/j.1537-2197.1968.tb07384.x
Other claims from this paper (9)
- Observation Arceuthobium has the only known chromosome number in the genus, n = 14.
- Observation The karyotype of Arceuthobium appears fundamentally symmetrical.
- Association Bivalents in Arceuthobium are significantly smaller than in the related genus Phoradendron.
- Mechanism Strong isolating mechanisms are advanced as a possible, hypothetical explanation for the absence of polyploidy in dwarf mistletoes.
- Observation The flowering characteristics of American Arceuthobium species fall into three principal groups.
- Observation Group 1 Arceuthobium species flower in winter and early spring and have southern distributions.
- Observation Group 2 Arceuthobium species flower in summer and have more northerly distributions.
- Observation Group 3 Arceuthobium species flower in spring at the highest latitudes but essentially complete floral development the previous summer.
- Observation A fourth flowering group of Arceuthobium is intermediate between the first and second groups.