Evidence map›Paper›PMID 25512552›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Correlated variation and population differentiation in satellite DNA abundance among lines of Drosophila melanogaster.

Kevin H-C Wei, Jennifer K Grenier, Daniel A Barbash, Andrew G Clark

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing 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

81 citing papers in PubMed.

  1. Article
  2. Satellite DNAs in Drosophila koepferae (repleta group) reveal patterns of origin, chromosomal organization, transcription, and turnover in the buzzatii cluster.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2026
    Article
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  5. Review
  6. The genetic control of rapid genome content divergence inbioRxiv : the preprint server for biology · 2026
    Article
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21 more citing papers are in PubMed but not listed here.

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

4 authors.

Kevin H-C WeiDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853-2703.
Jennifer K GrenierDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853-2703.
Daniel A BarbashDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853-2703.
Andrew G ClarkDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853-2703 ac347@cornell.edu.

Funding

Molecular Genetics of Drosophila Hybrid LethalityR01GM074737 · NIGMS · CORNELL UNIVERSITY ITHACA · PI BARBASH, DANIEL A · 2005 to 2022
$4.7M
Molecular Evolution of Drosophila Y ChromosomeR01GM064590 · NIGMS · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI CARVALHO, ANTONIO BERNARDO, CLARK, ANDREW G · 2002 to 2012
$2.0M
NIGMS NIH HHS R01 GM064590NIGMS NIH HHS R01 GM074737NIGMS NIH HHS R01 GM64590
6 · The paper itself

Abstract

Tandemly repeating satellite DNA elements in heterochromatin occupy a substantial portion of many eukaryotic genomes. Although often characterized as genomic parasites deleterious to the host, they also can be crucial for essential processes such as chromosome segregation. Adding to their interest, satellite DNA elements evolve at high rates; among Drosophila, closely related species often differ drastically in both the types and abundances of satellite repeats. However, due to technical challenges, the evolutionary mechanisms driving this rapid turnover remain unclear. Here we characterize natural variation in simple-sequence repeats of 2-10 bp from inbred Drosophila melanogaster lines derived from multiple populations, using a method we developed called k-Seek that analyzes unassembled Illumina sequence reads. In addition to quantifying all previously described satellite repeats, we identified many novel repeats of low to medium abundance. Many of the repeats show population differentiation, including two that are present in only some populations. Interestingly, the population structure inferred from overall satellite quantities does not recapitulate the expected population relationships based on the demographic history of D. melanogaster. We also find that some satellites of similar sequence composition are correlated across lines, revealing concerted evolution. Moreover, correlated satellites tend to be interspersed with each other, further suggesting that concerted change is partially driven by higher order structure. Surprisingly, we identified negative correlations among some satellites, suggesting antagonistic interactions. Our study demonstrates that current genome assemblies vastly underestimate the complexity, abundance, and variation of highly repetitive satellite DNA and presents approaches to understand their rapid evolutionary divergence.

Indexed as

Evolution, MolecularGenetic VariationAnimalsDNA, SatelliteDrosophila melanogasterGenome, InsectSequence Analysis, DNADNA, Satellitepopulation differentiationrapid evolutionsatellite DNA

Identifiers

PMID25512552
PMCPMC4284603

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.