Lysenkoism

Lysenkoism (Russian: лысенковщина, romanized: lysenkovshchina, IPA: [ɫɨˈsʲɛnkəfɕːɪnə]; Ukrainian: лисенківщина, romanized: lysenkivščyna, IPA: [lɪˈsɛnkiu̯ʃtʃɪnɐ]) was a political campaign led by the Soviet biologist Trofim Lysenko against genetics and science-based agriculture in the mid-20th century, rejecting natural selection in favour of a form of Lamarckism, as well as expanding upon the techniques of vernalization and grafting.

Genes can be affected by random changes (mutations), and can be shuffled and recombined during sexual reproduction, but are otherwise passed on unchanged from parent to offspring.

In contrast, Lamarckism proposed that an organism can somehow pass on characteristics that it has acquired during its lifetime to its offspring, implying that changing the body can affect the genetic material in the germ line.

[3][2][4] Marxism–Leninism, which became the official ideology in Stalin's USSR, incorporated Darwinian evolution as a foundational doctrine, providing a scientific basis for its state atheism.

Initially, the Lamarckian principle of inheritance of acquired traits was considered a legitimate part of evolutionary theory, and Darwin himself recognized its importance.

Besides the fervent "old style" Darwinism of Marx and Engels which included elements of Lamarckism, two fallacious experimental results supported it in the USSR.

First, Ivan Pavlov, who discovered conditioned reflex, announced in 1923[6] that it can be inherited in mice;[5] and his subsequent withdrawal of this claim was ignored by Soviet ideologists.

[9] In 1928, rejecting natural selection and Mendelian genetics, Trofim Lysenko claimed to have developed agricultural techniques which could radically increase crop yields.

Lysenko became a favorite of the Soviet propaganda machine, which overstated his successes, trumpeted his faked experimental results, and omitted any mention of his failures.

[14] State media published enthusiastic articles such as "Siberia is transformed into a land of orchards and gardens" and "Soviet people change nature", while anyone opposing Lysenko was presented as a defender of "mysticism, obscurantism and backwardness.

His attack on the "bourgeois pseudoscience" of modern genetics and the proposal that plants can rapidly adjust to a changed environment suited the ideological battle in both agriculture and Soviet society.

[16][12] Following the disastrous collectivization efforts of the late 1920s, Lysenko's new methods were seen by Soviet officials as paving the way to an "agricultural revolution."

[17][12] The Party-controlled newspapers applauded Lysenko's practical "success" and questioned the motives of his critics, ridiculing the timidity of academics who urged the patient, impartial observation required for science.

He denied the distinction between theoretical and applied biology, and rejected general methods such as control groups and statistics:[20] We biologists do not take the slightest interest in mathematical calculations, which confirm the useless statistical formulae of the Mendelists … We do not want to submit to blind chance … We maintain that biological regularities do not resemble mathematical laws.Lysenko presented himself as a follower of Ivan Vladimirovich Michurin, a well-known and well-liked Soviet horticulturist, but unlike Michurin, Lysenko insisted on using only non-genetic techniques such as hybridization and grafting.

[18]From July 31 to August 7, 1948, the Academy of Agricultural Sciences (VASKhNIL) held a week-long session,[25] organized by Lysenko and approved by Stalin.

p. 125 [28])For several months, similar central directives dismissed scientists, withdrew textbooks, and required the removal of any references to heredity in higher education.

Pravda reported the invention of a perpetual motion engine, confirming Engels' claim that energy dissipated in one place must concentrate somewhere else.

119-121 [28]) A prominent promoter of Lysenkoism was the biologist Olga Lepeshinskaya, who attempted to demonstrate abiogenesis of cells and tissues from "vital substance".

Indeed, the followers of Virchow, Weismann, Mendel and Morgan, who speak of the invariability of the gene and deny the influence of the external environment, are the preachers of the pseudo-scientific teachings of the bourgeois eugenicists and of all perversions in genetics, on the soil of which grew the racial theory of fascism in the capitalist countries.

[31] Over 3,000 biologists were imprisoned, fired[32] or executed for attempting to oppose Lysenkoism, and genetics research was effectively destroyed until the death of Stalin in 1953.

[37] In 1936, the American geneticist Hermann Joseph Muller, who had moved to the Leningrad Institute of Genetics with his Drosophila fruit flies, was criticized as bourgeois, capitalist, imperialist, and a promoter of fascism, and he returned to America via Republican Spain.

[38] Iosif Rapoport, who worked on mutagens, refused to publicly repudiate chromosome theory of heredity, and suffered several years as a geological lab assistant.

However, the return to regular genetics slowed down in Nikita Khrushchev's time, when Lysenko showed him the supposed successes of an experimental agricultural complex.

It was once again forbidden to criticize Lysenkoism, though it was now possible to express different views, and the geneticists imprisoned under Stalin were released or rehabilitated posthumously.

For example, Trybuna Ludu published an article titled "French scientists recognize superiority of Soviet science" by Pierre Daix, a French communist and chief editor of Les Lettres Françaises, basically repeating Soviet propaganda claims; this was intended to create an impression that Lysenkoism was accepted by the whole progressive world.

[45] A notable opponent was Wacław Gajewski: in retaliation, he was denied contact with students, though he allowed to continue his scientific work at the Warsaw botanical garden.

The prominent geneticist Jaroslav Kříženecký (1896–1964) criticized Lysenkoism in his lectures, and was dismissed from the Agricultural University in 1949 for "serving the established capitalistic system, considering himself superior to the working class, and being hostile to the democratic order of the people"; he was imprisoned in 1958.

[46] In East Germany, although Lysenkoism was taught at some universities, it had very little impact on science due to the actions of a few scientists, such as the geneticist Hans Stubbe, and scientific contact with West Berlin research institutions.

[48] For a while, both schools were permitted to coexist, although the influence of the Lysenkoists remained large for several years, contributing to the Great Famine through loss of yields.

[48] Almost alone among Western scientists, John Desmond Bernal, Professor of Physics at Birkbeck College, London, a Fellow of the Royal Society, and a communist,[49] made an aggressive public defence of Lysenko.

Lysenko speaking at the Kremlin in 1935; behind him are (left to right) Stanislav Kosior , Anastas Mikoyan , Andrei Andreev and Joseph Stalin
August Weismann 's germ plasm theory stated that the hereditary material, the germ plasm, is transmitted only by the reproductive organs. Somatic cells (of the body) develop afresh in each generation from the germ plasm. There is no way that changes made to somatic cells can affect the next generation, contrary to Lamarckism . [ 1 ]
Lysenko in 1938
Lysenkoist vegetative hybridisation implying an effect of scion on stock when a fruit tree is grafted . Lysenko's Lamarckian conception is very weakly justified by the modern theory of horizontal gene transfer . [ 12 ]