Expanding evolutionary theories of ageing to better account for symbioses and interactions throughout the Web of Life

Bapteste, Éric; Huneman, Philippe; Keller, Laurent; Teulière, Jérôme; Lopez, Philippe; Teeling, Emma C.; Lindner, Ariel B.; Baudisch, Annette; Ludington, William B.; Franceschi, Claudio

doi:10.1016/j.arr.2023.101982

Ageing Research Reviews

2023

DOI: 10.1016/j.arr.2023.101982

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Expanding evolutionary theories of ageing to better account for symbioses and interactions throughout the Web of Life

Éric Bapteste

Philippe Huneman

Laurent Keller

et al.

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2024

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Cited by 3 publications

References 178 publications

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The ageing virus hypothesis: Epigenetic ageing beyond the Tree of Life

Bapteste

2024

BioEssays

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A recent thought‐provoking theory argues that complex organisms using epigenetic information for their normal development and functioning must irreversibly age as a result of epigenetic signal loss. Importantly, the scope of this theory could be considerably expanded, with scientific benefits, by analyzing epigenetic ageing beyond the borders of the Tree of Life. Viruses that use epigenetic signals for their normal functioning may also age, that is, present an increasing risk of failing to complete their individual life cycle and to disappear with time. As viruses are ancient, abundant, and infect a considerable diversity of hosts, the ageing virus hypothesis, if verified, would have important consequences for many fields of the Life sciences. Uncovering ageing viruses would integrate the most abundant and biologically central entities on Earth into theories of ageing, enhance virology, gerontology, evolutionary biology, molecular ecology, genomics, and possibly medicine through the development of new therapies manipulating viral ageing.

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The ageing virus hypothesis: Epigenetic ageing beyond the Tree of Life

Bapteste

2024

BioEssays

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The evolution of ageing: classic theories and emerging ideas

Mc Auley

2024

Biogerontology

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Ageing is generally regarded as a non-adaptive by-product of evolution. Based on this premise three classic evolutionary theories of ageing have been proposed. These theories have dominated the literature for several decades. Despite their individual nuances, the common thread which unites them is that they posit that ageing results from a decline in the intensity of natural selection with chronological age. Empirical evidence has been identified which supports each theory. However, a consensus remains to be fully established as to which theory best accounts for the evolution of ageing. A consequence of this uncertainty are counter arguments which advocate for alternative theoretical frameworks, such as those which propose an adaptive origin for ageing, senescence, or death. Given this backdrop, this review has several aims. Firstly, to briefly discuss the classic evolutionary theories. Secondly, to evaluate how evolutionary forces beyond a monotonic decrease in natural selection can affect the evolution of ageing. Thirdly, to examine alternatives to the classic theories. Finally, to introduce a pluralistic interpretation of the evolution of ageing. The basis of this pluralistic theoretical framework is the recognition that certain evolutionary ideas will be more appropriate depending on the organism, its ecological context, and its life history.

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Most genetic roots of fungal and animal aging are hundreds of millions of years old according to phylostratigraphy analyses of aging networks

Bonnefous,

Teulière,

Lapointe

et al. 2024

GeroScience

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Expanding evolutionary theories of ageing to better account for symbioses and interactions throughout the Web of Life

Cited by 3 publications

References 178 publications

The ageing virus hypothesis: Epigenetic ageing beyond the Tree of Life

The ageing virus hypothesis: Epigenetic ageing beyond the Tree of Life

The evolution of ageing: classic theories and emerging ideas

Most genetic roots of fungal and animal aging are hundreds of millions of years old according to phylostratigraphy analyses of aging networks

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