Is Non-genetic Inheritance Just a Proximate Mechanism? A Corroboration of the Extended Evolutionary Synthesis

Biological Theory 7 (3):189-195 (2013)

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Abstract
What role does non-genetic inheritance play in evolution? In recent work we have independently and collectively argued that the existence and scope of non-genetic inheritance systems, including epigenetic inheritance, niche construction/ecological inheritance, and cultural inheritance—alongside certain other theory revisions—necessitates an extension to the neo-Darwinian Modern Synthesis (MS) in the form of an Extended Evolutionary Synthesis (EES). However, this argument has been challenged on the grounds that non-genetic inheritance systems are exclusively proximate mechanisms that serve the ultimate function of calibrating organisms to stochastic environments. In this paper we defend our claims, pointing out that critics of the EES (1) conflate non-genetic inheritance with early 20th-century notions of soft inheritance; (2) misunderstand the nature of the EES in relation to the MS; (3) confuse individual phenotypic plasticity with trans-generational non-genetic inheritance; (4) fail to address the extensive theoretical and empirical literature which shows that non-genetic inheritance can generate novel targets for selection, create new genetic equilibria that would not exist in the absence of non-genetic inheritance, and generate phenotypic variation that is independent of genetic variation; (5) artificially limit ultimate explanations for traits to gene-based selection, which is unsatisfactory for phenotypic traits that originate and spread via non-genetic inheritance systems; and (6) fail to provide an explanation for biological organization. We conclude by noting ways in which we feel that an overly gene-centric theory of evolution is hindering progress in biology and other sciences
Keywords Biological organization  Cultural evolution  Epigenetic inheritance  Extended Evolutionary Synthesis  Modern Synthesis  Niche construction  Non-genetic inheritance
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DOI 10.1007/s13752-013-0091-5
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References found in this work BETA

Nongenetic Selection and Nongenetic Inheritance.Matteo Mameli - 2004 - British Journal for the Philosophy of Science 55 (1):35-71.

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Citations of this work BETA

Niche Construction and Conceptual Change in Evolutionary Biology.Tobias Uller & Heikki Helanterä - 2019 - British Journal for the Philosophy of Science 70 (2):351-375.
Epigenetics: A Way to Bridge the Gap Between Biological Fields.Antonine Nicoglou & Francesca Merlin - 2017 - Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences 66:73-82.

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