Evidence map›Paper›PMID 33876756›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Heritable variation in telomere length predicts mortality in Soay sheep.

Hannah Froy, Sarah L Underwood, Jennifer Dorrens, Luise A Seeker, Kathryn Watt, Rachael V Wilbourn, Jill G Pilkington, Lea Harrington, Josephine M Pemberton, Daniel H Nussey

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
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  5. Short- and long-term costs of reproduction revealed by telomere dynamics in wild greater horseshoe bats.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  20. Lizards from warm and declining populations are born with extremely short telomeres.Proceedings of the National Academy of Sciences of the United States of America · 2022
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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

10 authors at 2 institutions in 2 countries.

Hannah FroyCentre for Biodiversity Dynamics, Institute for Biology, Norwegian University for Science and Technology, 7014 Trondheim, Norway; hannah.froy@ntnu.no dan.nussey@ed.ac.uk.ORCID 0000-0003-2965-3526
Sarah L UnderwoodInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, United Kingdom.
Jennifer DorrensInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, United Kingdom.
Luise A SeekerInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, United Kingdom.ORCID 0000-0001-6375-6372
Kathryn WattInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, United Kingdom.ORCID 0000-0001-9860-3034
Rachael V WilbournInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, United Kingdom.
Jill G PilkingtonInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, United Kingdom.
Lea HarringtonInstitute for Research in Immunology and Cancer, Université de Montréal, Montréal, QC H3C 3J7, Canada.ORCID 0000-0002-4977-2744
Josephine M PembertonInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, United Kingdom.
Daniel H NusseyInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, United Kingdom; hannah.froy@ntnu.no dan.nussey@ed.ac.uk.
University of Edinburgh · GBInstitute for Research in Immunology and Cancer · CA

Funding

Biotechnology and Biological Sciences Research Council BB/L020769/1
6 · The paper itself

Abstract

Telomere length (TL) is considered an important biomarker of whole-organism health and aging. Across humans and other vertebrates, short telomeres are associated with increased subsequent mortality risk, but the processes responsible for this correlation remain uncertain. A key unanswered question is whether TL-mortality associations arise due to positive effects of genes or early-life environment on both an individual's average lifetime TL and their longevity, or due to more immediate effects of environmental stressors on within-individual TL loss and increased mortality risk. Addressing this question requires longitudinal TL and life history data across the entire lifetimes of many individuals, which are difficult to obtain for long-lived species like humans. Using longitudinal data and samples collected over nearly two decades, as part of a long-term study of wild Soay sheep, we dissected an observed positive association between TL and subsequent survival using multivariate quantitative genetic models. We found no evidence that telomere attrition was associated with increased mortality risk, suggesting that TL is not an important marker of biological aging or exposure to environmental stress in our study system. Instead, we find that among-individual differences in average TL are associated with increased lifespan. Our analyses suggest that this correlation between an individual's average TL and lifespan has a genetic basis. This demonstrates that TL has the potential to evolve under natural conditions, and suggests an important role of genetics underlying the widespread observation that short telomeres predict mortality.

Indexed as

Genetic VariationLongevityTelomere HomeostasisAnimalsSheepagingbiomarkerlongevitysenescencesurvival

Identifiers

PMID33876756
PMCPMC8053994
OpenAlexW3142064742

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.