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. 2021 Sep;69(3):417-433.
doi: 10.1007/s10441-020-09396-7. Epub 2020 Oct 21.

Inheritance as Evolved and Evolving Physiological Processes

Francesca Merlin  1 , Livio Riboli-Sasco  2   3
Affiliations

Inheritance as Evolved and Evolving Physiological Processes

Francesca Merlin et al. Acta Biotheor. 2021 Sep.

Abstract

In this paper, we adopt a physiological perspective in order to produce an intelligible overview of biological transmission in all its diversity. This allows us to put forward the analysis of transmission mechanisms, with the aim of complementing the usual focus on transmitted factors. We underline the importance of the structural, dynamical, and functional features of transmission mechanisms throughout organisms' life cycles in order to answer to the question of what is passed on across generations, how and why. On this basis, we propose a vision of biological transmission as networks of heterogeneous physiological mechanisms, not restricted to transmission mechanisms stricto sensu. They prove to be themselves suited candidates for evolutionary explanations. They are processes both necessary for evolution to happen and resulting themselves from evolution. This leads us to call for a strategy of endogenization to account for transmission, and more specifically inheritance, as evolved and evolving physiological mechanisms.

Keywords: Evolutionary dynamics; Extended inheritance; Inheritance; Non-genetic transmission; Physiological perspective; Strategy of endogenization; Transmission mechanisms.

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