Evidence map›Paper›PMID 24891140›Full record

ArticleBMC evolutionary biology2014

Hermaphrodite life history and the maintenance of partial selfing in experimental populations of Caenorhabditis elegans.

Sara Carvalho, Patrick C Phillips, Henrique Teotónio

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Article in BMC evolutionary biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

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14citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

  1. Article
  2. Review
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  4. Article
  5. Phenotypic stasis with genetic divergence.Peer community journal · 2023
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  7. Article
  8. Review
  9. Article
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  12. Review
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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Sara Carvalho
Patrick C Phillips
Henrique TeotónioInstituto Gulbenkian de Ciência, Apartado 14, P-2781-901 Oeiras, Portugal. teotonio@biologie.ens.fr.

Funding

European Research Council 243285
6 · The paper itself

Abstract

backgroundClassic population genetics theory predicts that mixed reproductive systems, where self reproduction (selfing) and outcrossing co-exist, should not be as common as they are in nature. One means of reconciling theory with observations is to recognize that sexual conflict between males and hermaphrodites and/or constraints in the allocation of resources towards sex functions in hermaphrodites can balance the fitness components of selfing and outcrossing.

resultsUsing experimental evolution in Caenorhabditis elegans, we test whether the adaptive maintenance of partial selfing is due to sexual conflict and/or to the evolution of sex allocation towards male function in hermaphrodites. For this, we characterized the reproductive schedule and longevity patterns in hermaphrodites under selfing and under outcrossing with naïve males that did not have the opportunity to evolve with them. A shift in reproductive schedule towards earlier reproduction would be indicative of adaptation in our imposed life-cycle, while longevity is expected to evolve as a response to the harm that males impinge on hermaphrodites upon mating. To determine adaptation in the absence of constraints in sex allocation, we also characterized the life history of females that reproduced during experimental evolution through obligate mating with males. As expected with adaptation, we find that after 100 generations of experimental evolution, selfing hermaphrodites and females showed improved reproduction at earlier ages. We did not observe similar reproductive shifts in outcrossed hermaphrodites. We further find increased longevity in outcrossed females after evolution but not in outcrossed hermaphrodites, a result that indicates that sexual conflicts were likely more prevalent under male-female evolution than under male-hermaphrodite evolution.

conclusionsTaken together, our findings suggest that the adaptive maintenance of partial selfing during C. elegans experimental evolution resulted from the evolution of sex allocation towards male function in hermaphrodites.

Indexed as

Biological EvolutionAnimalsCaenorhabditis elegansFemaleFertilityGenetics, PopulationLongevityMalePopulation DynamicsReproduction

Identifiers

PMID24891140
PMCPMC4052797

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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.