Speciation, Natural Selection, and Networks: Three Historians Versus Theoretical Population Geneticists
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Authors
Date
2022-11-12
Type
journal article
Language
en
Keyword
Bateson's Residue, Biometricians, Eclipse Of Darwinism, Modern Synthesis, Reductionism, Romanes' Collective Variation , Research Subject Categories::NATURAL SCIENCES , Research Subject Categories::SOCIAL SCIENCES , Research Subject Categories::MEDICINE , Research Subject Categories::INTERDISCIPLINARY RESEARCH AREAS
Alternative Title
Abstract
The early biometricians, who attacked Mendelism, morphed into modern population geneticists, who accept Mendelism but maintain that natural selection suffices to explain both within-species evolution ("microevolution") and between-species evolution ("macroevolution"). Among students who came under their influence, were two future historians – William Provine and Mark Adams – who provided supporting papers and a much-cited text The Origins of Theoretical Population Genetics (1971). However, opposition arose from biochemists (e.g., Woese, Pederson), chromosomal cytologists (e.g., White, King), a ciliate geneticist (Nanney), and Richard Grantham, whose bioinformatic analysis of DNA sequences led to his "genome hypothesis" in the 1980s. Drawing on both early studies (Gulick, Romanes, Bateson, Winge, Goldschmidt) and the later works of Chargaff and Sueoka, in the 1990s Grantham's work was continued by a scientist-historian, Forsdyke, who proposed a molecular basis for the initiation of the divergence of one species into two (speciation) that did not require natural selection. Meanwhile, despite their earlier schooling, Provine and Adams had noted anomalies and began to actively question traditional "just-so-stories." The convergence of their views with those of Forsdyke, suggested that a "collective variation" postulated by Romanes and a mysterious "residue" postulate by Bateson, might relate to differences in short runs of DNA bases (oligonucleotides). Contrasts are drawn between resolution of scientific conflicts in dictatorships, where specialist groups ("networks") need authoritarian approval, and in democracies, where approval involves public engagement. Whereas the downfall of Nikita Khrushchev quickly reversed Trofim Lysenko's hold on Russian genetics, in the West "public intellectuals" and their followers can slow reform.
Description
Neglected or misinterpreted by the theoretical population geneticists, the 19th century studies of George John Romanes (born in Kingston, Ontario, in1848) and the UK geneticist William Bateson (1861-1926) are now seen by three historians to provide a conceptual basis for modern developments in evolutionary studies that shed fresh light on many biomedical problems (e.g., the US Roe versus Wade reproductive rights issue). The routes this history took in authoritarian and democratic societies have troubling similarities.
Citation
https://ssrn.com/abstract=4111560
Publisher
Social Sciences Research Network