Evidence map›Paper›PMID 22844637›Full record

ArticleInternational journal of evolutionary biology2012

Why chromosome palindromes?

Esther Betrán, Jeffery P Demuth, Anna Williford

Open access · hybridAbstract read
In one paragraph

Article in International journal of evolutionary biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.2field-weighted citation impact, top 18% 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

25 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Why not Y naught.Heredity · 2022
    Review
  9. International journal of molecular sciences · 2022
    Review
  10. Article
  11. Dynamic evolution of great ape Y chromosomes.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
  20. Review
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

3 authors at 1 institution in 1 country.

Esther BetránDepartment of Biology, University of Texas at Arlington, Box 19498, Arlington, TX 76019, USA.
Jeffery P Demuth
Anna Williford
The University of Texas at Arlington · US

Funding

Epistasis: its role in complex tratis, gene expression and speciationR01GM065414 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI DEMUTH, JEFFERY, WADE, MICHAEL J · 2003 to 2012
$3.1M
Sexual conflict and relocation of genes by duplicationR01GM071813 · NIGMS · UNIVERSITY OF TEXAS ARLINGTON · PI BETRAN, ESTHER · 2005 to 2014
$1.5M
NIGMS NIH HHS R01 GM065414NIGMS NIH HHS R01 GM071813
6 · The paper itself

Abstract

We look at sex-limited chromosome (Y or W) evolution with particular emphasis on the importance of palindromes. Y chromosome palindromes consist of inverted duplicates that allow for local recombination in an otherwise nonrecombining chromosome. Since palindromes enable intrachromosomal gene conversion that can help eliminate deleterious mutations, they are often highlighted as mechanisms to protect against Y degeneration. However, the adaptive significance of recombination resides in its ability to decouple the evolutionary fates of linked mutations, leading to both a decrease in degeneration rate and an increase in adaptation rate. Our paper emphasizes the latter, that palindromes may exist to accelerate adaptation by increasing the potential targets and fixation rates of incoming beneficial mutations. This hypothesis helps reconcile two enigmatic features of the "palindromes as protectors" view: (1) genes that are not located in palindromes have been retained under purifying selection for tens of millions of years, and (2) under models that only consider deleterious mutations, gene conversion benefits duplicate gene maintenance but not initial fixation. We conclude by looking at ways to test the hypothesis that palindromes enhance the rate of adaptive evolution of Y-linked genes and whether this effect can be extended to palindromes on other chromosomes.

Identifiers

PMID22844637
PMCPMC3403216
OpenAlexW2111210655

What OpenQuestion holds

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LicenceCC BY
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.