Claim · model-written summary
Two bivalents were nucleolus attached at zygotene and diakinesis in C. mexicana.
- Taxon
- C. mexicana
.jpg?width=60)
Calceolaria mexicanae0 - Outcome
- two bivalents are attached to the nucleoluse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“two bivalents are attached to the nucleolus at zygotene and diakinesis in C. mexicana”
Title
Morphological and Cytological Studies in the Genus Calceolaria
K. V. Srinath CYTOLOGIA 1940. doi:10.1508/cytologia.10.467
Other claims from this paper (12)
- Observation Three Calceolaria species were diploid with 2n=18.
- Observation C. dentata was diploid with 2n=18.
- Observation C. Banksii was diploid with 2n=18.
- Observation C. mexicana was aneuploid with 2n=60.
- Observation One bivalent was nucleolus attached at diplotene and diakinesis in diploids.
- Observation Interstitial chiasmata persisted in 35% of diploid cases at diplotene but terminalised at metaphase.
- Observation Multivalents were rare in diploids.
- Observation Aneuploid chromosome associations ranged from trivalents to groups of eight.
- Observation Rings and chains of four and six chromosomes were found.
- Observation Secondary association in diploids had a maximum grouping of 3 (2)+1 (3).
- Observation The authors inferred derivation of the diploid number from basic number 4, indicating allopolyploidy.
- Observation Chromatin bridges at Anaphase I indicated inverted segments in diploids.