Ecology, the pace‐of‐life, epistatic selection and the maintenance of genetic variation in life‐history genes

Arnqvist, Göran; Rowe, Locke

doi:10.1111/mec.17062

Cited by 4 publications

(3 citation statements)

References 167 publications

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“…Negatively frequency-dependent selection from resource competition, which we study here, is recognized as potentially important for the maintenance of genetic variation [41], although there are few thoroughly documented cases. One example might be male morphs in rainbow trout [42,43].…”

Section: Discussionmentioning

confidence: 90%

The evolutionary consequences of learning under competition

McNamara,

Dall,

Houston

et al. 2024

Proc. R. Soc. B.

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Learning is a taxonomically widespread process by which animals change their behavioural responses to stimuli as a result of experience. In this way, it plays a crucial role in the development of individual behaviour and underpins substantial phenotypic variation within populations. Nevertheless, the impact of learning in social contexts on evolutionary change is not well understood. Here, we develop game theoretical models of competition for resources in small groups (e.g. producer–scrounger and hawk–dove games) in which actions are controlled by reinforcement learning and show that biases in the subjective valuation of different actions readily evolve. Moreover, in many cases, the convergence stable levels of bias exist at fitness minima and therefore lead to disruptive selection on learning rules and, potentially, to the evolution of genetic polymorphisms. Thus, we show how reinforcement learning in social contexts can be a driver of evolutionary diversification. In addition, we consider the evolution of ability in our games, showing that learning can also drive disruptive selection on the ability to perform a task.

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Section: Discussionmentioning

confidence: 90%

The evolutionary consequences of learning under competition

McNamara,

Dall,

Houston

et al. 2024

Proc. R. Soc. B.

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“…One of these concerns the maintenance of genetic variation at life history genes, since variation at such loci should be degraded by natural selection. Arnqvist and Rowe (2023) hypothesize that negative frequency‐dependent selection is often responsible for polymorphism at major life history genes, with potentially cascading effects on variation at other life history genes through epistatic selection. The other Opinion piece tackles the longstanding confusion and inconsistent usage of the terms parallel and convergent evolution.…”

Section: Highlights Of 2023mentioning

confidence: 99%

Editorial 2024

Rieseberg,

Warschefsky,

Burton

et al. 2023

Molecular Ecology

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Molecular Ecology (MEC) continues to be one of the largest and most influential journals in the fields of ecology and evolution. In 2022, a total of 434 citable items were published in the journal, ranking third out of 53 journals in Clarivate's list of Evolutionary Biology journals and sixth of 171 Ecology journals. A similar pattern is seen for total citations, where MEC was cited 40,823 times (third in Evolutionary Biology and fourth in Ecology). Additional metrics include journal impact factor (4.9; eighth in Evolutionary Biology) and EigenFactor (0.030, fifth in Evolutionary Biology). The latter metric measures the number of times articles from the journal published in the past five years have been cited in the focal year. Google Scholar's h5-index, which is the h-index for articles published over the past five years, offers a longer term measure of journal influence. Molecular Ecology has an h5-index of 72, which ranks fourth among ecology journals. Lastly, journal downloads demonstrate wide interest in research published in MEC, reaching close to 1.9 million in 2021 and 2022. | EDITORIAL ANNOUN CEMENTS | Minimum standards for data and code in ecology and evolution journalsMolecular Ecology was among the first journals in ecology and evolution to require that data supporting the results of published papers be archived in an appropriate public archive (Rieseberg et al., 2010). Over the years, we expanded the policy to include code, programming scripts, and software, as well as detailed metadata. Earlier this year, members of the MEC and Molecular Ecology Resources (MER) Editorial Board (along with editors from other journals) contributed to an article in Ecology and Evolution that established minimum standards for data and code in ecology and evolution journals (Jenkins et al., 2023). While the recommendations largely reinforce what we are already doing, the article provides a description of best practices for archiving of data, metadata, programming scripts, and software, such that analyses published in a given study can be fully replicated. We will be linking the recommendation to our author guidelines. We also will be transitioning to requiring data and code be made available to editors and reviewers during peer review.

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“…Ecological factors play fundamental roles in the maintenance of variation in life-history genes (Jops & O’Dwyer, 2023), particularly those linked with “pace-of-life” traits (Arnqvist & Rowe, 2023). The timing of sexual maturation (age at maturity) is a crucial life-history trait influenced by environmental cues as well as genetic and physiological mechanisms regulating the onset of puberty (Taranger et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Gene co-expression patterns in Atlantic salmon adipose tissue provide a molecular link among seasonal changes, energy balance and age at maturity

Ahi,

Verta,

Kurko

et al. 2023

Preprint

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Sexual maturation in many fishes requires a major physiological change that involves a rapid transition between energy storage and usage. In Atlantic salmon, this transition for the initiation of maturation is tightly controlled by seasonality and requires a high-energy status . Lipid metabolism is at the heart of this transition since lipids are the main energy storing molecules. The balance between lipogenesis (lipid accumulation) and lipolysis (lipid use) determines energy status transitions. A genomic region containing a transcription co-factor of the Hippo pathway, vgll3, is the main determinant of maturation timing in Atlantic salmon. Interestingly, vgll3 acts as an inhibitor of adipogenesis in mice and its genotypes are potentially associated with seasonal heterochrony in lipid storage and usage in juvenile Atlantic salmon. Here, we explored changes in expression of more than 300 genes directly involved in the processes of adipogenesis, lipogenesis and lipolysis, as well as the Hippo pathway in the adipose tissue of immature and mature Atlantic salmon with distinct vgll3 genotypes. We found molecular evidence consistent with a scenario in which immature males exhibiting vgll3 genotype specific seasonal direction of change in their lipid profiles. We also identified components of the Hippo signaling pathway as potential major drivers of vgll3 genotype specific differences in adipose tissue gene expression. This study demonstrates the importance of adipose gene expression patterns for directly linking environmental changes with energy balance and age at maturity through genetic factors bridging lipid metabolism, seasonality and sexual maturation.

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Ecology, the pace‐of‐life, epistatic selection and the maintenance of genetic variation in life‐history genes

Cited by 4 publications

References 167 publications

The evolutionary consequences of learning under competition

The evolutionary consequences of learning under competition

Editorial 2024

Gene co-expression patterns in Atlantic salmon adipose tissue provide a molecular link among seasonal changes, energy balance and age at maturity

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