Evidence map›Paper›PMID 18214422›Full record

ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2008

Chromosomal polymorphism of ribosomal genes in the genus Oryza.

Mei-Chu Chung, Yung-I Lee, Yueh-Yun Cheng, Yi-Jia Chou, Chia-Fu Lu

Open access · hybridAbstract read
In one paragraph

Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
8.7field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 64 citations in OpenAlex.

  1. Investigating the Origin and Evolution of PolyploidPlants (Basel, Switzerland) · 2023
    Article
  2. Frontiers in plant science · 2023
    Article
  3. Article
  4. Karyotypic stability of Fragaria (strawberry) species revealed by cross-species chromosome painting.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2021
    Article
  5. Chromosome and Genome Diversity in the GenusPlants (Basel, Switzerland) · 2021
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Mei-Chu ChungInstitute of Plant and Microbial Biology, Academia Sinica, Taipei, 11529, Taiwan, Republic of China. bomchung@gate.sinica.edu.tw
Yung-I Lee
Yueh-Yun Cheng
Yi-Jia Chou
Chia-Fu Lu
Academia Sinica · TWInstitute of Plant and Microbial Biology, Academia Sinica · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The genes encoding for 18S-5.8S-28S ribosomal RNA (rDNA) are both conserved and diversified. We used rDNA as probe in the fluorescent in situ hybridization (rDNA-FISH) to localized rDNAs on chromosomes of 15 accessions representing ten Oryza species. These included cultivated and wild species of rice, and four of them are tetraploids. Our results reveal polymorphism in the number of rDNA loci, in the number of rDNA repeats, and in their chromosomal positions among Oryza species. The numbers of rDNA loci varies from one to eight among Oryza species. The rDNA locus located at the end of the short arm of chromosome 9 is conserved among the genus Oryza. The rDNA locus at the end of the short arm of chromosome 10 was lost in some of the accessions. In this study, we report two genome specific rDNA loci in the genus Oryza. One is specific to the BB genome, which was localized at the end of the short arm of chromosome 4. Another may be specific to the CC genome, which was localized in the proximal region of the short arm of chromosome 5. A particular rDNA locus was detected as stretched chromatin with bright signals at the proximal region of the short arm of chromosome 4 in O. grandiglumis by rDNA-FISH. We suggest that chromosomal inversion and the amplification and transposition of rDNA might occur during Oryza species evolution. The possible mechanisms of cyto-evolution in tetraploid Oryza species are discussed.

Indexed as

Genome, PlantPolymorphism, GeneticChromosomes, PlantDNA, RibosomalDNA, Ribosomal SpacerIn Situ Hybridization, FluorescenceOryzaRNA, Ribosomal, 18SRNA, Ribosomal, 28SRNA, Ribosomal, 5SDNA, RibosomalDNA, Ribosomal SpacerRNA, Ribosomal, 18SRNA, Ribosomal, 28SRNA, Ribosomal, 5S

Identifiers

PMID18214422
PMCPMC2271086
OpenAlexW2078409200

What OpenQuestion holds

Textmetadata
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.