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Condition-transfer maternal effects modulate inter-locus sexual conflict

García-Roa, Roberto LU ; Faria, Gonçalo S. ; Noble, Daniel W.A. LU and Carazo, Pau (2024) In Behavioral Ecology 35(1).
Abstract

Strong sexual selection frequently favors males that increase their reproductive success by harming females, with potentially negative consequences for natural populations. Understanding what factors modulate conflict between the sexes is hence critical to understand both the evolution of male and female phenotypes and the viability of populations in the wild. Here, we model the evolution of male harm while incorporating male-induced maternal effects on offspring quality. We show that because male harm can induce condition-transfer maternal effects that reduce the quality of a harming male's own offspring, maternal effects can partially align male and female evolutionary interests and significantly curb the evolution of male harm. These... (More)

Strong sexual selection frequently favors males that increase their reproductive success by harming females, with potentially negative consequences for natural populations. Understanding what factors modulate conflict between the sexes is hence critical to understand both the evolution of male and female phenotypes and the viability of populations in the wild. Here, we model the evolution of male harm while incorporating male-induced maternal effects on offspring quality. We show that because male harm can induce condition-transfer maternal effects that reduce the quality of a harming male's own offspring, maternal effects can partially align male and female evolutionary interests and significantly curb the evolution of male harm. These effects are independent of relatedness, the scale of competition, mating system, and whether male harm comes before (i.e., harassment) and/or during/after (i.e., traumatic inseminations or toxic ejaculates) mating and are particularly salient when maternal effects influence offspring ability to inflict (sons) or resist (daughters) harm. Our results underscore the potential importance of considering maternal effects to unravel the evolution of sexual conflict.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
evolution, maternal effects, population growth, population viability, sexual conflict, sexual selection, sexually antagonistic coevolution
in
Behavioral Ecology
volume
35
issue
1
article number
arad108
pages
8 pages
publisher
Oxford University Press
external identifiers
  • scopus:85183031565
ISSN
1045-2249
DOI
10.1093/beheco/arad108
language
English
LU publication?
yes
id
9e1a3a68-a7bc-4f8c-a7cc-de404ac189da
date added to LUP
2024-02-23 11:39:07
date last changed
2024-02-26 14:12:56
@article{9e1a3a68-a7bc-4f8c-a7cc-de404ac189da,
  abstract     = {{<p>Strong sexual selection frequently favors males that increase their reproductive success by harming females, with potentially negative consequences for natural populations. Understanding what factors modulate conflict between the sexes is hence critical to understand both the evolution of male and female phenotypes and the viability of populations in the wild. Here, we model the evolution of male harm while incorporating male-induced maternal effects on offspring quality. We show that because male harm can induce condition-transfer maternal effects that reduce the quality of a harming male's own offspring, maternal effects can partially align male and female evolutionary interests and significantly curb the evolution of male harm. These effects are independent of relatedness, the scale of competition, mating system, and whether male harm comes before (i.e., harassment) and/or during/after (i.e., traumatic inseminations or toxic ejaculates) mating and are particularly salient when maternal effects influence offspring ability to inflict (sons) or resist (daughters) harm. Our results underscore the potential importance of considering maternal effects to unravel the evolution of sexual conflict.</p>}},
  author       = {{García-Roa, Roberto and Faria, Gonçalo S. and Noble, Daniel W.A. and Carazo, Pau}},
  issn         = {{1045-2249}},
  keywords     = {{evolution; maternal effects; population growth; population viability; sexual conflict; sexual selection; sexually antagonistic coevolution}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{Oxford University Press}},
  series       = {{Behavioral Ecology}},
  title        = {{Condition-transfer maternal effects modulate inter-locus sexual conflict}},
  url          = {{http://dx.doi.org/10.1093/beheco/arad108}},
  doi          = {{10.1093/beheco/arad108}},
  volume       = {{35}},
  year         = {{2024}},
}