ArticleBMC plant biology2017
Visualization of chromosome condensation in plants with large chromosomes.
Article in BMC plant biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 22 citations in OpenAlex.
- Graft Biology in the CRISPR Era: From Tissue Fusion to Genome Compatibility.Plant-environment interactions (Hoboken, N.J.) · 2026Review
- A new efficient immunoprotocol to detect chromosomal/nuclear proteins along with repetitive DNA in squash preparations of formalin-fixed, long-stored root tips.Plant methods · 2025Article
- Advanced environmental scanning electron microscopy reveals natural surface nano-morphology of condensed mitotic chromosomes in their native state.Scientific reports · 2024Article
- Helical coiling of metaphase chromatids.Nucleic acids research · 2023Article
- The Sister Chromatid Division of the Heteromorphic Sex Chromosomes inInternational journal of molecular sciences · 2022Article
- Variation in the Number and Position of rDNA Loci Contributes to the Diversification and Speciation inFrontiers in plant science · 2022Article
- Emergent properties of mitotic chromosomes.Current opinion in cell biology · 2020Review
- An adaptation of Twort's method for polychromatic staining of epoxy-embedded semithin sections.Histochemistry and cell biology · 2020Article
- Mitotic chromosome organization: General rules meet species-specific variability.Computational and structural biotechnology journal · 2020Review
- Analysis of Chromosome Condensation/Decondensation During Mitosis by EdU Incorporation inBio-protocol · 2018Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMost data concerning chromosome organization have been acquired from studies of a small number of model organisms, the majority of which are mammals. In plants with large genomes, the chromosomes are significantly larger than the animal chromosomes that have been studied to date, and it is possible that chromosome condensation in such plants was modified during evolution. Here, we analyzed chromosome condensation and decondensation processes in order to find structural mechanisms that allowed for an increase in chromosome size.
resultsWe found that anaphase and telophase chromosomes of plants with large chromosomes (average 2C DNA content exceeded 0.8 pg per chromosome) contained chromatin-free cavities in their axial regions in contrast to well-characterized animal chromosomes, which have high chromatin density in the axial regions. Similar to animal chromosomes, two intermediates of chromatin folding were visible inside condensing (during prophase) and decondensing (during telophase) chromosomes of Nigella damascena: approximately 150 nm chromonemata and approximately 300 nm fibers. The spatial folding of the latter fibers occurs in a fundamentally different way than in animal chromosomes, which leads to the formation of chromosomes with axial chromatin-free cavities.
conclusionDifferent compaction topology, but not the number of compaction levels, allowed for the evolution of increased chromosome size in plants.
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