Evidence map›Paper›PMID 21247942›Full record

ArticleBiology letters2011

Oxidative damage to DNA related to survivorship and carotenoid-based sexual ornamentation in the common yellowthroat.

Corey R Freeman-Gallant, Joel Amidon, Brittany Berdy, Stephanie Wein, Conor C Taff, Mark F Haussmann

Abstract read
In one paragraph

Article in Biology letters, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
11.5field-weighted citation impact, top 2% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Molecular parallelism in signaling function across different sexually selected ornaments in a warbler.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  6. Diversity in warning coloration: selective paradox or the norm?Biological reviews of the Cambridge Philosophical Society · 2019
    Review
  7. Article
  8. What maintains signal honesty in animal colour displays used in mate choice?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  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 at 3 institutions in 1 country.

Corey R Freeman-GallantDepartment of Biology, Skidmore College, Saratoga Springs, NY 12866, USA.
Joel Amidon
Brittany Berdy
Stephanie Wein
Conor C Taff
Mark F Haussmann
Skidmore College · USBucknell University · USUniversity of California, Davis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Carotenoid-based sexual ornaments are hypothesized to be reliable signals of male quality, based on an allocation trade-off between the use of carotenoids as pigments and their use in antioxidant defence against reactive oxygen species. Carotenoids appear to be poor antioxidants in vivo, however, and it is not clear whether variation in ornament expression is correlated with measures of oxidative stress (OXS) under natural conditions. We used single-cell gel electrophoresis to assay oxidative damage to erythrocyte DNA in the common yellowthroat (Geothlypis trichas), a sexually dichromatic warbler in which sexual selection favours components of the males' yellow 'bib'. We found that the level of DNA damage sustained by males predicted their overwinter survivorship and was reflected in the quality of their plumage. Males with brighter yellow bibs showed lower levels of DNA damage, both during the year the plumage was sampled (such that yellow brightness signalled current OXS) and during the previous year (such that yellow brightness signalled past OXS). We suggest that carotenoid-based ornaments can convey information about OXS to prospective mates and that further work exploring the proximate mechanism(s) linking OXS to coloration is warranted.

Indexed as

DNA DamagePigmentationSex CharacteristicsAnimalsCarotenoidsComet AssayFemaleMaleOxidative StressSongbirdsCarotenoids

Identifiers

PMID21247942
PMCPMC3097884
OpenAlexW2131413367

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.