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Revista chilena de historia natural

Print version ISSN 0716-078X


VALENZUELA, CARLOS Y. Neutral illusions, selective nightmares and autopoietic madness. Rev. chil. hist. nat. [online]. 2010, vol.83, n.4, pp.497-500. ISSN 0716-078X.

Until now, there are three evolutionary models: I) The Synthetic Theory of Evolution (STE) also named as the Neo-Darwinian model; II) The Neutral Theory of Evolution (NTE) with its daughter the Nearly-Neutral Theory of Evolution (NNTE); III) The Theory of Evolution by means of Natural Drift (NDTE) (Valenzuela 2007, 2009). All these theories accept that variation of genomes of living beings emerges by mutation. They disagree in relation of the causes of the acquisition and maintenance of the living being organization. STE proposes that the main factor for the acquisition and maintenance of fixated organization is selection and a marginal role of genetic drift. NTE proposed that the acquisition and maintenance of fixated organization is drift with a marginal role of selection, its daughter the NNTE includes besides selection with coefficients similar to the mutation rates. NDTE is derived from the conception of living beings as autopoietic processes, thus the acquisition and maintenance of organization occur by natural drift and living beings are always adapted. The extreme importance given to the factors of evolution, within each theory, has lead to absurd exaggerations that seems now illusions, nightmares or simply madness.

Keywords : Synthetic Theory of Evolution; Neutral Theory of Evolution; Natural Drift.

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