With whom is the gene in conflict in offspring production?: Synthesis of the theories of intragenomic and parent-offspring conflict

Sakai, Satoki

doi:10.1016/j.jtbi.2010.07.001

Cited by 3 publications

(3 citation statements)

References 35 publications

(45 reference statements)

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“…In conclusion, our study demonstrates that parental antagonism and parent-offspring co-adaptation act as entangled key drivers of family interactions, even in species with facultative forms of care. This finding highlights the importance to consider these two major evolutionary processes together rather than in isolation to get a better understanding of the mechanisms regulating family interactions and promoting the evolution of social life [11,19,42]. Furthermore, our results demonstrate that the early-life social environment of offspring shape the strategy they later adopt as parents but also that they transmit to their own offspring.…”

Section: Discussionmentioning

confidence: 55%

Parental antagonism and parent–offspring co-adaptation interact to shape family life

Meunier

Kölliker

2012

Proc. R. Soc. B.

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The family is an arena for conflicts between offspring, mothers and fathers that need resolving to promote the evolution of parental care and the maintenance of family life. Co-adaptation is known to contribute to the resolution of parent–offspring conflict over parental care by selecting for combinations of offspring demand and parental supply that match to maximize the fitness of family members. However, multiple paternity and differences in the level of care provided by mothers and fathers can generate antagonistic selection on offspring demand (mediated, for example, by genomic imprinting) and possibly hamper co-adaptation. While parent–offspring co-adaptation and parental antagonism are commonly considered two major processes in the evolution of family life, their co-occurrence and the evolutionary consequences of their joint action are poorly understood. Here, we demonstrate the simultaneous and entangled effects of these two processes on outcomes of family interactions, using a series of breeding experiments in the European earwig, Forficula auricularia , an insect species with uniparental female care. As predicted from parental antagonism, we show that paternally inherited effects expressed in offspring influence both maternal care and maternal investment in future reproduction. However, and as expected from the entangled effects of parental antagonism and co-adaptation, these effects critically depended on postnatal interactions with caring females and maternally inherited effects expressed in offspring. Our results demonstrate that parent–offspring co-adaptation and parental antagonism are entangled key drivers in the evolution of family life that cannot be fully understood in isolation.

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Section: Discussionmentioning

confidence: 55%

Parental antagonism and parent–offspring co-adaptation interact to shape family life

Meunier

Kölliker

2012

Proc. R. Soc. B.

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“…Sakai 26 modeled the interaction of genes in the female parent, and maternally as well as paternally derived genes in her growing offspring in the competition on maternal resources, comprising parent-offspring conflict as well as intragenomic conflict. Parentoffspring conflict arises since female parents are equally related to all of their offspring and, thus, tend to allocate resources equally, while each offspring is more closely related to itself than to its siblings, trying to exploit maternal resources.…”

Section: Genomic Imprintingmentioning

confidence: 99%

“…Paternally derived genes are on average less related to other offspring than maternally derived genes are, if more than one male parent contributes to offspring production. 28 Sakai 26 derived different situations of conflict, depending on the costs caused by abortions due to overgrowth. With increasing costs, the situation alters from harmony in interaction via patterns of parent-offspring conflict to patterns of genomic imprinting.…”

Section: Genomic Imprintingmentioning

confidence: 99%

Evolutionary game theory: molecules as players

et al. 2014

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In this and an accompanying paper we review the use of game theoretical concepts in cell biology and molecular biology. This review focuses on the subcellular level by considering viruses, genes, and molecules as players. We discuss in which way catalytic RNA can be treated by game theory. Moreover, genes can compete for success in replication and can have different strategies in interactions with other genetic elements. Also transposable elements, or "jumping genes", can act as players because they usually bear different traits or strategies. Viruses compete in the case of co-infecting a host cell. Proteins interact in a game theoretical sense when forming heterodimers. Finally, we describe how the Shapley value can be applied to enzymes in metabolic pathways. We show that game theory can be successfully applied to describe and analyse scenarios at the molecular level resulting in counterintuitive conclusions.

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Reproductive mode and the shifting arenas of evolutionary conflict

Furness

Morrison

Orr

et al. 2015

Annals of the New York Academy of Sciences

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In sexually reproducing organisms, the genetic interests of individuals are not perfectly aligned. Conflicts among family members are prevalent since interactions involve the transfer of limited resources between interdependent players. Intrafamilial conflict has traditionally been considered along three major axes: between the sexes, between parents and offspring, and between siblings. In these interactions, conflict is expected over traits in which the resulting phenotypic value is determined by multiple family members who have only partially overlapping fitness optima. We focus on four major categories of animal reproductive mode (broadcast spawning, egg laying, live bearing, and live bearing with matrotrophy) and identify the shared phenotypes or traits over which conflict is expected, and then review the empirical literature for evidence of their occurrence. Major transitions among reproductive mode, such as a shift from external to internal fertilization, an increase in egg-retention time, modifications of embryos and mothers for nutrient transfer, the evolution of postnatal parental care, and increased interaction with the kin network, mark key shifts that both change and expand the arenas in which conflict is played out.

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With whom is the gene in conflict in offspring production?: Synthesis of the theories of intragenomic and parent-offspring conflict

Cited by 3 publications

References 35 publications

Parental antagonism and parent–offspring co-adaptation interact to shape family life

Parental antagonism and parent–offspring co-adaptation interact to shape family life

Evolutionary game theory: molecules as players

Reproductive mode and the shifting arenas of evolutionary conflict

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