Lysenkoism

• 1. Introduction

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  Lysenkoism was a pseudoscientific political campaign that dismantled Soviet biology for a generation. At its height, more than 3,000 mainstream biologists were dismissed or imprisoned, and numerous scientists were executed. The man at the center of this catastrophe, Trofim Lysenko, was not a credentialed geneticist but a peasant-born agronomist who managed to have genetics itself declared illegal. How did a single scientist, armed with fraudulent results and Marxist rhetoric, manage to bring down an entire field of knowledge? And what happened to the researchers who refused to yield? Those are the questions this documentary will follow.

• 2. Marxism Against Mendel

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  Gregor Mendel's laws of heredity were rediscovered at the start of the 20th century, and through the work of August Weismann, Thomas Hunt Morgan, and others, genetics became a rigorous experimental science. By 1925, the Mendelian view had largely displaced older theories in Western biology. But inside the Soviet Union, that displacement never fully took hold.

  Some Marxists perceived a contradiction between Darwinian genetics and their political framework. The problem was specific: Darwinian natural selection operates on individual random mutations, while Marxism centred on collective class struggle. Random individual variation felt ideologically inconvenient, even hostile. The alternative, Lamarckism, held that an organism can pass on traits it acquired during its own lifetime. To certain Soviet thinkers, this idea of directed, purposeful change in living organisms matched the spirit of Marxist transformation far better than blind mutation.

  The Marxist principle of partiinost, or party spirit, held that science must serve class interests. Scientific findings were to be judged by their political and economic utility. Because genetics was associated with eugenics and Social Darwinism, it was dismissed as bourgeois regardless of the evidence supporting it. Marxist revolutionary Nikolai Bukharin argued that science had to show how to manipulate nature in the service of the proletariat.

  Two experimental results kept Lamarckism alive in Soviet doctrine beyond its expiration date in the West. Ivan Pavlov, who had discovered the conditioned reflex, announced in 1923 that conditioned reflexes could be inherited in mice. His later withdrawal of that claim was simply ignored by Soviet ideologists. Meanwhile, the horticulturist Ivan Michurin interpreted his plant-breeding work as proof of the inheritance of acquired traits, coining the defiant motto: "We cannot wait for favors from nature: we must wrest them from her."

• 3. The Rise of Trofim Lysenko

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  In 1928, Trofim Lysenko claimed to have developed agricultural techniques capable of radically increasing crop yields. His central method was vernalization: exposing wheat seeds to humidity and low temperature before planting. He further claimed he could transform one wheat species, Triticum durum, into another, Triticum vulgare, through two to four years of autumn planting. This species transition, he insisted, occurred without an intermediate form. Botanists already knew this was impossible. Triticum durum is a tetraploid with 28 chromosomes, while Triticum vulgare is hexaploid with 42. The objection did not slow Lysenko; he simply claimed the chromosome number changed as well.

  The political machinery amplified Lysenko far beyond anything his results could justify. Isaak Izrailevich Prezent, a biologist politically out of favor, brought Lysenko to public attention by portraying him as a genius who had solved the crisis of Soviet agriculture. State media published triumphant headlines such as "Siberia is transformed into a land of orchards and gardens." Anyone who challenged Lysenko was presented as a defender of "mysticism, obscurantism and backwardness."

  Lysenko was from a peasant family and was an enthusiastic advocate of Leninism. His attack on the "bourgeois pseudoscience" of genetics resonated precisely because Soviet agriculture had just been devastated by Stalin's forced collectivization and the resulting famine of 1932-1933. Officials desperately wanted a technical fix that did not require dismantling their political program. Lysenko gave them the story they needed.

  In 1935, Lysenko compared his critics in biology to peasants who still resisted Soviet collectivization. Stalin was in the audience for that speech and was the first to stand and applaud, calling out: "Bravo, Comrade Lysenko. Bravo." From that moment, Lysenko's position was effectively untouchable. He used it to denounce traditional biologists as "fly-lovers and people haters" and as "wreckers" sabotaging the Soviet economy. He rejected control groups, statistics, and general scientific methods outright, stating in his own words: "We biologists do not take the slightest interest in mathematical calculations."

• 4. The Week That Changed Everything

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  From the 31st of July to the 7th of August 1948, the Academy of Agricultural Sciences, known as VASKhNIL, held a week-long session organized by Lysenko and approved by Stalin. At its conclusion, Lysenkoism was declared "the only correct theory." When Lysenko concluded his performance, he announced that the Central Committee of the Communist Party had examined his report and approved it. Attendants understood immediately that a new orthodoxy had arrived. Of the eight scientists who had advocated genetics during the session, three publicly announced repentance before the week was out.

  What followed was institutional obliteration. The Ministry of Higher Education ordered all biological institutes to purge themselves of anyone opposed to what it called Michurinist biology. Order No. 1208, issued on the 23rd of August 1948, directed university administrations to review all biology departments within two months and dismiss those who did not conform. Textbooks were withdrawn. All references to heredity were stripped from higher education curricula. There was even an explicit order to destroy all stocks of Drosophila, the common fruit fly that geneticists used as a research organism.

  Leading geneticists were placed under surveillance by agents of the State Security Service. The propaganda extended into culture as well. In 1948, a film titled Michurin portrayed the horticulturist as an ideal Soviet scientist. Published songbooks included verses praising Lysenko. Pravda reported the alleged invention of a perpetual motion engine as scientific news. The biologist Olga Lepeshinskaya, a prominent Lysenkoism promoter, attempted to demonstrate that cells could arise from non-living "vital substance" and drew direct lines connecting genetics to fascism in her public speeches.

  Perhaps the only scientists who escaped this wave entirely were the Soviet nuclear physicists. According to the historian Tony Judt, Stalin left his nuclear physicists alone and never second-guessed their calculations, a practical concession the dictator made nowhere else in the sciences.

• 5. The Scientists Who Paid

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  Nikolai Vavilov had been Lysenko's mentor before he recognized the danger of what Lysenko was doing and denounced him. Vavilov was the president of the Soviet Agriculture Academy, a world-class plant geneticist, and one of the most respected scientists in the USSR. He was arrested in 1940 and died in prison in 1943.

  Between 1934 and 1940, under Lysenko's admonitions and with Stalin's approval, a series of geneticists were executed: Izrail Agol, Solomon Levit, Grigorii Levitskii, Georgii Karpechenko, and Georgii Nadson. Others were sent to labor camps. Secret research facilities called sharashka became the destinations for imprisoned scientists who still had skills the state found useful.

  Hermann Joseph Muller, an American geneticist who had relocated to the Leningrad Institute of Genetics along with his Drosophila fruit flies, was denounced in 1936 as bourgeois, capitalist, imperialist, and a promoter of fascism. He left the country via Republican Spain and returned to America. Iosif Rapoport, who worked on chemical mutagens, refused to publicly repudiate the chromosome theory of heredity and spent years afterward as a geological lab assistant. Dmitry Sabinin's book on plant physiology was abruptly withdrawn from publication in 1948; he died by suicide in 1951.

  Those who embraced Lysenkoism were rewarded. Alexander Oparin vigorously defended it and gained political favor. He continued defending Lysenkoism even in 1955, well after its influence had begun to wane, suggesting his support may have been genuinely held rather than purely opportunistic. Lysenkoism also pushed into Soviet schools, displacing Darwinism from natural science curricula and ensuring that a generation of students received no grounding in modern genetics.

• 6. Beyond the Soviet Borders

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  The Soviet campaign did not stay within the USSR. Countries across the Eastern Bloc adopted Lysenkoism as the official "new biology," each to different degrees.

  In Communist Poland, state newspapers attacked "damage caused by bourgeois Mendelism-Morganism" and compared mainstream genetics to Mein Kampf. Doctoral students in biology were required to study Engels's Anti-Duhring and Lenin's Materialism and Empiriocriticism and pass examinations in Marxist philosophy. The geneticist Waclaw Gajewski openly opposed Lysenkoism and was denied contact with students as punishment, though he was not dismissed from his post at the Warsaw botanical garden. Poland rejected Lysenkoism from 1956, and in 1958 Gajewski founded Poland's first department of genetics at the University of Warsaw.

  Communist Czechoslovakia adopted Lysenkoism in 1949. The geneticist Jaroslav Krizenecky, born in 1896, criticized it in his lectures and was dismissed from the Agricultural University that same year for, in the official language, "serving the established capitalistic system." He was imprisoned in 1958.

  In East Germany, a handful of scientists including the geneticist Hans Stubbe, aided by the unusual access East German researchers had to West Berlin institutions, managed to limit Lysenkoism's reach. Still, Lysenkoist theories appeared in East German schoolbooks as late as 1964, when Nikita Khrushchev was dismissed from power.

  In China, Lysenkoism dominated science from 1949 until 1956. Open discussion of Mendelian genetics was forbidden during those years. At a 1956 genetics symposium, Tan Jiazhen was quoted in the published proceedings: "Since the USSR started to criticize Lysenko, we have dared to criticize him too." The lingering Lysenkoist influence contributed to yield losses that fed into the Great Famine.

  In October 1947, Lysenko had written to Stalin promising to breed a strain of wheat yielding 15,000 kilograms per hectare. At the time, the most productive wheat under exceptional conditions could achieve 2,000 kilograms per hectare. The promises kept coming; the harvests did not.

• 7. Collapse and Afterlife

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  By the end of 1952, newspapers within the Soviet Union began publishing articles critical of Lysenkoism. But the process of unwinding was not clean. Under Nikita Khrushchev, Lysenko managed a partial comeback, demonstrating the supposed successes of an experimental agricultural complex and regaining enough favor to briefly halt criticism again. The imprisoned geneticists were released or rehabilitated posthumously, but the ban on genetics was not fully lifted until the mid-1960s.

  Soviet scientists watching the global advance of molecular biology, including the characterization of DNA, found it impossible to remain isolated. Even committed Lysenkoists began accepting DNA as the material basis of heredity, though they still rejected gene theory specifically.

  In the 21st century, Lysenkoism has reappeared as a topic in Russia, covered in publications including the newspaper Kultura. The geneticist Lev Zhivotovsky has made the unsupported claim that Lysenko helped found modern developmental biology. Epigenetics, which involves heritable changes that do not alter DNA sequences, is sometimes raised as a vindication of Lysenko's ideas. The comparison does not survive scrutiny. Lysenko held that environment-induced changes are the primary mechanism of all heritability. Heritable epigenetic effects have been found, but they are minor and unstable compared to conventional genetic inheritance. The science of epigenetics does not rescue Lysenko's claims; it simply operates in a different, much narrower register.

  Waclaw Gajewski, who had been punished for refusing to endorse Lysenkoism in Poland, went on to establish the first Polish genetics department at the University of Warsaw in 1958 -- a small, concrete marker of what the discipline looked like when it was finally allowed to rebuild.