uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Evolution of male age-specific reproduction under differential risks and causes of death: males pay the cost of high female fitness
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Evolutionary Biology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
2016 (English)In: Journal of Evolutionary Biology, ISSN 1010-061X, E-ISSN 1420-9101, Vol. 29, no 4, 848-856 p.Article in journal (Refereed) PublishedText
Abstract [en]

Classic theories of ageing evolution predict that increased extrinsic mortality due to an environmental hazard selects for increased early reproduction, rapid ageing and short intrinsic lifespan. Conversely, emerging theory maintains that when ageing increases susceptibility to an environmental hazard, increased mortality due to this hazard can select against ageing in physiological condition and prolong intrinsic lifespan. However, evolution of slow ageing under high-condition-dependent mortality is expected to result from reallocation of resources to different traits and such reallocation may be hampered by sex-specific trade-offs. Because same life-history trait values often have different fitness consequences in males and females, sexually antagonistic selection can preserve genetic variance for lifespan and ageing. We previously showed that increased condition-dependent mortality caused by heat shock leads to evolution of long-life, decelerated late-life mortality in both sexes and increased female fecundity in the nematode, Caenorhabditis remanei. Here, we used these cryopreserved lines to show that males evolving under heat shock suffered from reduced early-life and net reproduction, while mortality rate had no effect. Our results suggest that heat-shock resistance and associated long-life trade-off with male, but not female, reproduction and therefore sexually antagonistic selection contributes to maintenance of genetic variation for lifespan and fitness in this population.

Place, publisher, year, edition, pages
2016. Vol. 29, no 4, 848-856 p.
Keyword [en]
heat shock, intralocus sexual conflict, life-history trade-off, senescence, sex-specific pleiotropy
National Category
Evolutionary Biology
Identifiers
URN: urn:nbn:se:uu:diva-295550DOI: 10.1111/jeb.12833ISI: 000373929000015PubMedID: 26801472OAI: oai:DiVA.org:uu-295550DiVA: diva2:934338
Available from: 2016-06-08 Created: 2016-06-08 Last updated: 2016-06-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Chen, Hwei -YenSpagopoulou, FoteiniMaklakov, Alexei A.
By organisation
Evolutionary BiologyAnimal ecology
In the same journal
Journal of Evolutionary Biology
Evolutionary Biology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 40 hits
ReferencesLink to record
Permanent link

Direct link