Evidence map›Paper›PMID 39082232›Full record

ArticleAging cell2024

Sex-specific growth and lifespan effects of germline removal in the dioecious nematode Caenorhabditis remanei.

Martin I Lind, Brian S Mautz, Hanne Carlsson, Andrea Hinas, Erik Gudmunds, Alexei A Maklakov

Abstract read
In one paragraph

Article in Aging cell, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. 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

6 authors.

Martin I LindAnimal Ecology, Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden.ORCID 0000-0001-5602-1933
Brian S MautzAnimal Ecology, Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden.ORCID 0000-0003-3870-2932
Hanne CarlssonAnimal Ecology, Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden.ORCID 0000-0002-3001-8258
Andrea HinasDepartment of Cell and Molecular Biology, Uppsala University, Uppsala, Sweden.ORCID 0000-0002-9353-0742
Erik GudmundsDepartment of Cell and Molecular Biology, Uppsala University, Uppsala, Sweden.ORCID 0000-0001-9496-8976
Alexei A MaklakovAnimal Ecology, Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden.ORCID 0000-0002-5809-1203

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Germline regulates the expression of life-history traits and mediates the trade-off between reproduction and somatic maintenance. However, germline maintenance in itself can be costly, and the costs can vary between the sexes depending on the number of gametes produced across the lifetime. We tested this directly by germline ablation using glp-1 RNA interference (RNAi) in a dioecious nematode Caenorhabditis remanei. Germline removal strongly increased heat-shock resistance in both sexes, thus confirming the role of the germline in regulating somatic maintenance. However, germline removal resulted in increased lifespan only in males. High costs of mating strongly reduced lifespan in both sexes and obliterated the survival benefit of germline-less males even though neither sex produced any offspring. Furthermore, germline removal reduced male growth before maturation but not in adulthood, while female growth rate was reduced both before and especially after maturation. Thus, germline removal improves male lifespan without major growth costs, while germline-less females grow slower and do not live longer than reproductively functional counterparts in the absence of environmental stress. Overall, these results suggest that germline maintenance is costlier for males than for females in C. remanei.

Indexed as

CaenorhabditisGerm CellsLongevityAnimalsFemaleMaleReproductionRNA InterferenceSex Characteristicsgermlineglp‐1heat‐shocklifespansex‐specific

Identifiers

PMID39082232
PMCPMC11561660

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Registered trials

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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.