Realistic genetic architecture enables organismal adaptation as predicted under the folk definition of inclusive fitness
Garcia‐Costoya, G., & Fromhage, L. (2021). Realistic genetic architecture enables organismal adaptation as predicted under the folk definition of inclusive fitness. Journal of Evolutionary Biology, 34(7), 1087-1094. https://doi.org/10.1111/jeb.13795
Published inJournal of Evolutionary Biology
© 2021 The Authors. Journal of Evolutionary Biology published by John Wiley & Sons Ltd on behalf of European Society for Evolutionary Biology
A fundamental task of evolutionary biology is to explain the pervasive impression of organismal design in nature, including traits benefiting kin. Inclusive fitness is considered by many to be a crucial piece in this puzzle, despite ongoing discussion about its scope and limitations. Here we use individual‐based simulations to study what quantity (if any) individual organisms become adapted to maximise when genetic architectures are more or less suitable for the presumed main driver of biological adaptation: namely, cumulative multi‐locus evolution. As an expository device we focus on a hypothetical situation called Charlesworth’s paradox, in which altruism is seemingly predicted to evolve, yet altruists immediately perish along with their altruistic genes. Our results support a recently proposed re‐definition of inclusive fitness, which is concerned with the adaptive design of whole organisms as shaped by multi‐locus evolution, rather than with selection for any focal gene. They also illustrate how our conceptual understanding of adaptation at the phenotypic level should inform our choice of genetic assumptions in abstract simplified models. ...
Dataset(s) related to the publicationhttps://doi.org/10.5061/dryad.1jwstqjv7
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Fromhage, Lutz; Jennions, Michael D. (The Royal Society Publishing, 2019)How to define and use the concept of inclusive fitness is a contentious topic in evolutionary theory. Inclusive fitness can be used to calculate selection on a focal gene, but it is also applied to whole organisms. Individuals ...
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