Evidence map›Paper›PMID 26370559›Full record

ArticleBMC evolutionary biology2015

Ancient gene duplications have shaped developmental stage-specific expression in Pristionchus pacificus.

Praveen Baskaran, Christian Rödelsperger, Neel Prabh, Vahan Serobyan, Gabriel V Markov, Antje Hirsekorn, Christoph Dieterich

Abstract read
In one paragraph

Article in BMC evolutionary biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed.

  1. Evolution of sensory systems underlies the emergence of predatory feeding behaviors in nematodes.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  4. High Nutritional Conditions Influence Feeding Plasticity in Pristionchus pacificus and Render Worms Non-Predatory.Journal of experimental zoology. Part B, Molecular and developmental evolution · 2025
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  16. G3 (Bethesda, Md.) · 2019
    Article
  17. Two new Species ofJournal of nematology · 2019
    Article
  18. Article
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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

7 authors.

Praveen BaskaranMax-Planck Institute for Developmental Biology, Spemannstr. 35, Tübingen, 72076, Germany. praveen.baskaran@tuebingen.mpg.de.
Christian RödelspergerMax-Planck Institute for Developmental Biology, Spemannstr. 35, Tübingen, 72076, Germany. christian.roedelsperger@tuebingen.mpg.de.
Neel PrabhMax-Planck Institute for Developmental Biology, Spemannstr. 35, Tübingen, 72076, Germany. neel.prabh@tuebingen.mpg.de.
Vahan SerobyanMax-Planck Institute for Developmental Biology, Spemannstr. 35, Tübingen, 72076, Germany. vahan.serobyan@tuebingen.mpg.de.
Gabriel V MarkovMax-Planck Institute for Developmental Biology, Spemannstr. 35, Tübingen, 72076, Germany. gabriel.markov@tuebingen.mpg.de.
Antje HirsekornMax-Delbrück Center for Molecular Medicine, Robert-Rössle-Straße 10, Berlin-Buch, 13125, Germany. Antje.Hirsekorn@mdc-berlin.de.
Christoph DieterichMax-Planck Institute for Biology of Aging, Joseph-Stelzmann-Str. 9b, Köln, 50866, Germany. christoph.dieterich@age.mpg.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe development of multicellular organisms is accompanied by gene expression changes in differentiating cells. Profiling stage-specific expression during development may reveal important insights into gene sets that contributed to the morphological diversity across the animal kingdom.

resultsWe sequenced RNA-seq libraries throughout a developmental timecourse of the nematode Pristionchus pacificus. The transcriptomes reflect early larval stages, adult worms including late larvae, and growth-arrested dauer larvae and allowed the identification of developmentally regulated gene clusters. Our data reveals similar trends as previous transcriptome profiling of dauer worms and represents the first expression data for early larvae in P. pacificus. Gene expression clusters characterizing early larval stages show most significant enrichments of chaperones, while collagens are most significantly enriched in transcriptomes of late larvae and adult worms. By combining expression data with phylogenetic analysis, we found that developmentally regulated genes are found in paralogous clusters that have arisen through lineage-specific duplications after the split from the Caenorhabditis elegans branch.

conclusionsWe propose that gene duplications of developmentally regulated genes represent a plausible evolutionary mechanism to increase the dosage of stage-specific expression. Consequently, this may contribute to the substantial divergence in expression profiles that has been observed across larger evolutionary time scales.

Indexed as

Gene DuplicationAnimalsBiological EvolutionCaenorhabditis elegansGene Expression ProfilingGene Expression Regulation, DevelopmentalGene LibraryLarvaMultigene FamilyNematodaPhylogeny

Identifiers

PMID26370559
PMCPMC4570658

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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.