Abstract
The paper concerns the chemists way of looking at evolution. It is not based on the DNA but on the chemical elements in The Periodic Table of Mendelev. The first step is the analysis of the element content of organisms as they arose historically. This shows that in keeping with our knowledge of the environment the chemical elements in organisms changed due to the rise in oxygen in the atmosphere. Elements such as copper and zinc were greatly increased in later organism as they were released from their sulfidic ores to the sea. The nature of the changes in the chemical elements available to organisms is then discussed in terms of their functions. It is shown that much though the Darwin perception of evolution is pure chance it is strictly guided by the inevitable chemistry of the elements arising from oxidation of the environment.
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Acknowledgments
This paper is in very large part a reproduction of a paper, R.J.P. Williams, A Chemical Systems Approach to Evolution, Dalton Transactions 2007, 991–1001, with permission from The Royal Society of Chemistry, UK.
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Since the material in this survey was published in Maynard-Smith and Szathmáry (2000) and Williams and Fraústo da Silva (2006) several authors have analysed DNA/RNA sequences in greater detail, see C. Andreini, L. Banci, I. Bertini and A. Rosato. J. Proteome Res. 2006, 5, 3173–3178, J.W. Torrance, M.W. MacArthur and J.M. Thornton, Structure, Function and Bio-information, 71, 813–830, 2008, and Y. Zhang and V.N. Gladyshev. Chem. Rev. 2009 (May) and the references in these articles. The conclusions strongly re-enforce the connection we have described in this article and previously between the environment changes and the evolution of organisms which has to be via inorganic chemistry changes, principally oxidation.
Note Concerning this Paper
This paper was given on 29th May 2009 at a meeting of the Accademia Nazionale dei Lincei in order to celebrate the 140th anniversary of the formulation of The Periodic Table by Mendelev. The paper does not concern the chemistry of all the elements in that table but refers only to those of significance in living organisms. However, the functional significance of the elements involved in living processes is a direct reflection of their properties as placed in that table. There are the very different values of the elements in Group I, Na and K; Group II, Mg and Ca; transition metals in Groups III to XI from Sc to Cu; B-subgroup elements such as Zn in Group XII and non-metals from Groups XIII to XVII including B, C, N, O, Cl, Si, P, S, Se and I but as in Mendelev’s original table the elements of Group XVIII, the noble gases, do not appear. It is not only mineral but also biological inorganic chemistry that is systematized in the table. Evolution of the environment and organisms are closely related to the inorganic chemistry Mendelev’s Table reflects.
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Williams, R.J.P. A chemical systems approach to evolution. Rend. Fis. Acc. Lincei 21, 47–70 (2010). https://doi.org/10.1007/s12210-009-0053-9
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DOI: https://doi.org/10.1007/s12210-009-0053-9