ArticleProtoplasma2012
Telomere and 45S rDNA sequences are structurally linked on the chromosomes in Chrysanthemum segetum L.
Article in Protoplasma, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 14 citations in OpenAlex.
- InterstitialPlants (Basel, Switzerland) · 2021Article
- Interstitial Telomeric-like Repeats (ITR) in Seed Plants as Assessed by Molecular Cytogenetic Techniques: A Review.Plants (Basel, Switzerland) · 2021Review
- Cytogenetic analysis of Bienertia sinuspersici Akhani as the first step in genome sequencing.Genes & genomics · 2020Article
- First report of bicolour FISH ofHereditas · 2019Article
- Article
- Expression of 5 S rRNA genes linked to 35 S rDNA in plants, their epigenetic modification and regulatory element divergence.BMC plant biology · 2012Article
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Some reports have shown that nucleolar organizer regions are located at the telomeric region and have a structural connection with telomeres at the cellular level in many organisms. In this study, we found that all 45S ribosomal DNA (rDNA) signals were located at telomeric regions on the chromosomes in Chrysanthemum segetum L., and the 45S rDNA showed distinct signal patterns on different metaphase chromosome spreads. The bicolor fluorescence in situ hybridization experiment on the extended fibers revealed that telomere repeats were structurally connected with or interspersed into rDNA sequences. The close cytological structure relation between rDNA and telomere sequences led us to use PCR with combinations of the telomere primer and the rDNA primer to obtain some fragments, which were flanked by different rDNA and telomere primer sequences. One representative clone CHS2 contains closely connected rDNA and telomere sequences, suggesting that the telomere sequence invaded into the conserved rDNA sequence. In addition, the sequences of some PCR clones were flanked by the single telomeric primer sequence or the rDNA primer sequence. These results suggested that homologous recombination occurred between tandem repeat units of rDNA sequences or telomere repeats at the chromosome terminus.
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Registered trials
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