Claim · model-written summary
I. asiatica with 2n = 22 had 11 bivalents.
- Taxon
- I. asiaticaIsoetes asiaticae0
- Outcome
- bivalentse0
- Value
- 11e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Verbatim
e0“At diakinesis and/or metaphase I of microspore mother cells in I. asiatica with 2n = 22, 11 bivalents were detected”
Title
Masayuki Takamiya; Mitsuru Watanabe; Kanji Ono American Journal of Botany 1996. doi:10.2307/2446115
Other claims from this paper (11)
- Observation Hexaploid I. japonica formed 33 bivalents.
- Observation Octaploid I. japonica formed 44 bivalents.
- Observation Tetraploid I. sinensis formed 22 bivalents.
- Observation Hexaploid I. sinensis formed 33 bivalents.
- Mechanism The regularly meiotic Isoetes cytotypes were inferred to reproduce sexually.
- Observation Aneuploid I. japonica formed 43 bivalents and one univalent.
- Observation Aneuploid I. sinensis formed 32 bivalents and one univalent.
- Observation Meiosis of both aneuploid cytotypes was nearly regular and yielded normal appearing microspores.
- Observation Heptaploid I. japonica had 22 bivalents and 33 univalents and irregular meiosis.
- Observation The heptaploid I. japonica was inferred to be a sterile hybrid with genomic formula AABBCDE.
- Mechanism Allopolyploidy was proposed as a significant Isoetes speciation mechanism.