Sex-specific inbreeding depression: A meta-analysis.
heterogamous
homozygosity
incest
sexual conflict
sexual selection
Journal
Ecology letters
ISSN: 1461-0248
Titre abrégé: Ecol Lett
Pays: England
ID NLM: 101121949
Informations de publication
Date de publication:
Apr 2022
Apr 2022
Historique:
revised:
22
11
2021
received:
27
05
2021
accepted:
08
12
2021
pubmed:
23
1
2022
medline:
1
4
2022
entrez:
22
1
2022
Statut:
ppublish
Résumé
Inbreeding depression, the reduced fitness of the offspring of related individuals, can affect males and females differently. Although a comprehensive theoretical framework describing the causes of sex-specific inbreeding depression is lacking, empirical evidence suggests that often one sex tends to be more vulnerable than the other. However, the generality, direction, and degree of sex-specific difference in inbreeding depression remains enigmatic as studies on this topic have reported conflicting results. Here, we conduct a meta-analysis to test for sex-specific differences in the magnitude of inbreeding depression. We synthetised 321 effect sizes of experimental studies across 47 species and found a small difference in inbreeding depression between the sexes: females suffered slightly higher inbreeding depression than males. Furthermore, a higher inbreeding coefficient was correlated with higher inbreeding depression. However, there was a large amount of heterogeneity that remained unexplained, even when considering different factors that could affect inbreeding between the sexes, such as sexual size dimorphism, heterogamety, the type of trait measured and whether animals were tested in a stressful environment. As such, we highlight the need to further explore inbreeding depression across different species to determine the occurrence and causes of sex differences to increase our understanding of the evolutionary consequences of sex-specific inbreeding depression.
Identifiants
pubmed: 35064612
doi: 10.1111/ele.13961
pmc: PMC9304238
doi:
Types de publication
Journal Article
Meta-Analysis
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
1009-1026Subventions
Organisme : Vetenskapsrådet
ID : 2017-04957
Organisme : Vetenskapsrådet
ID : 2017-04680
Organisme : Carl Tryggers Foundation
ID : 17
Organisme : Carl Tryggers Foundation
ID : 152
Organisme : Knut and Alice Wallenberg Foundation
ID : 2016-0146
Organisme : Biotechnology and Biological Sciences Research Council
ID : BB/V001256/1
Pays : United Kingdom
Informations de copyright
© 2022 The Authors. Ecology Letters published by John Wiley & Sons Ltd.
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