Evidence map›Paper›PMID 18245350›Full record

ArticleGenetics2008

An investigation of heterochromatin domains on the fourth chromosome of Drosophila melanogaster.

Nicole C Riddle, Wilson Leung, Karmella A Haynes, Howard Granok, Jo Wuller, Sarah C R Elgin

Abstract read
In one paragraph

Article in Genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
–field-weighted citation impact
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

27 citing papers in PubMed.

  1. Article
  2. Article
  3. Heterochromatin-based silencing of a foreign tandem repeat inbioRxiv : the preprint server for biology · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Epigenetics and genome stability.Mammalian genome : official journal of the International Mammalian Genome Society · 2020
    Review
  10. Article
  11. TheGenetics · 2018
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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

6 authors.

Nicole C RiddleDepartment of Biology, Washington University, St. Louis, Missouri 63130, USA.
Wilson Leung
Karmella A Haynes
Howard Granok
Jo Wuller
Sarah C R Elgin

Funding

STRUCTURAL AND GENETIC STUDIES OF CHROMOSOMAL PROTEINSR01GM031532 · NIGMS · WASHINGTON UNIVERSITY · PI ELGIN, SARAH C. · 1985 to 2003
$1.2M
NIGMS NIH HHS GM-31532
6 · The paper itself

Abstract

The banded portion of Drosophila melanogaster chromosome 4 exhibits euchromatic and heterochromatic characteristics. Reminiscent of heterochromatin, it contains a high percentage of repetitive elements, does not undergo recombination, and exhibits high levels of HP1 and histone-3 lysine-9 dimethylation. However, in the distal 1.2 Mb, the gene density is typical of euchromatin, and this region is polytene in salivary gland nuclei. Using P-element reporters carrying a copy of hsp70-white, alternative chromatin packaging domains can be distinguished by the eye color phenotype. Mapping studies identified the repetitive element 1360 as a candidate for heterochromatin targeting in the fourth chromosome Hcf region. We report here two new screens using this reporter to look for additional heterochromatin target sites. We confirm that reporter elements within 10 kb of 1360 are usually packaged as heterochromatin; however, heterochromatin packaging occurs in the sv region in the absence of 1360. Analyses of the sequences adjacent to P-element reporters show no simple association between specific repeated elements and transgene expression phenotype on a whole chromosome level. The data require that heterochromatin formation as a whole depends on a more complex pattern of sequence organization rather than the presence of a single sequence element.

Indexed as

AnimalsChromobox Protein Homolog 5Chromosomal Proteins, Non-HistoneChromosome MappingChromosomesDNA Transposable ElementsDrosophila melanogasterGenes, ReporterGenome, InsectHeterochromatinMutagenesis, InsertionalMutationPhenotypeTransgenesChromobox Protein Homolog 5Chromosomal Proteins, Non-HistoneDNA Transposable ElementsHeterochromatin

Identifiers

PMID18245350
PMCPMC2278077

What OpenQuestion holds

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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.