Evidence map›Paper›PMID 22215604›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

The spread of a transposon insertion in Rec8 is associated with obligate asexuality in Daphnia.

Brian D Eads, Dai Tsuchiya, Justen Andrews, Michael Lynch, Miriam E Zolan

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

22 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
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  7. Review
  8. Article
  9. Population Genomics ofGenetics · 2017
    Article
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  11. Article
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  15. Article
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  18. Asexual Daphnia genomes expose something old, new, borrowed, and blue.Proceedings of the National Academy of Sciences of the United States of America · 2013
    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

5 authors at 1 institution in 1 country.

Brian D EadsDepartment of Biology, Indiana University, Bloomington, IN 47405, USA.
Dai Tsuchiya
Justen Andrews
Michael Lynch
Miriam E Zolan
Indiana University Bloomington · US

Funding

RADIATION REPAIR AND MEIOSIS IN COPRINUS CINEREUSR01GM043930 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI ZOLAN, MIRIAM E · 1995 to 2009
$2.7M
RADIATION REPAIR AND MEIOSIS IN COPRINUS CINEREUSR29GM043930 · NIGMS · INDIANA UNIVERSITY BLOOMINGTON · PI ZOLAN, MIRIAM E · 1990 to 1994
–
NIGMS NIH HHS GM43930NIGMS NIH HHS R01 GM043930
6 · The paper itself

Abstract

Although transitions from sexual to asexual reproduction are thought to have important evolutionary consequences, little is known about the mechanistic underpinnings of these changes. The cyclical parthenogen Daphnia pulex is a powerful model in which to address these issues because female-limited meiosis suppression can be transmitted to sexual individuals via males, providing the opportunity for genetic dissection of the trait. A previous study identified genomic regions differentiating obligately asexual females from their sexual counterparts, and a candidate gene within one such region, encoding the meiotic cohesin Rec8, is the subject of this investigation. The D. pulex genome contains three Rec8 loci, all of which are quite polymorphic. However, at one of the loci, all obligately asexual clones carry an allele containing an identical upstream insertion of a transposable element as well as a frameshift mutation, both of which are completely absent from sexual lineages. The low level of variation within the insertion allele across all asexual lineages suggests that this element may be in the process of spreading through the species, and abrogation or modification of Rec8 function is possibly responsible for converting meiotically reproducing lineages into obligate asexuals.

Indexed as

AllelesAnimalsDaphniaDNA Transposable ElementsEvolution, MolecularFemaleGenomeMaleMolecular Sequence DataMutagenesis, InsertionalNuclear ProteinsParthenogenesisPhylogenyReproduction, AsexualDNA Transposable ElementsNuclear Proteins

Identifiers

PMID22215604
PMCPMC3271927
OpenAlexW2109726329

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.