Lysenkoism

Lysenkoism. It was a state-sanctioned doctrine of biology and agronomy that dominated Soviet science from the 1930s to the early 1960s. Named for its chief proponent, Trofim Lysenko, it rejected Mendelian and chromosomal genetics in favor of Lamarckian principles of the inheritance of acquired characteristics. The doctrine was enforced by the Communist Party of the Soviet Union and had devastating consequences for Soviet agriculture and biological research.

Origins and development

The movement emerged from the work of Trofim Lysenko, an agronomist who gained prominence in the late 1920s for his unorthodox agricultural techniques, such as vernalization. His ideas found favor within the Bolshevik leadership, particularly under Joseph Stalin, as they were presented as a practical, Marxist alternative to "bourgeois" science. Key early supporters included Isaak Prezent, a philosopher who helped formulate its ideological framework, and officials within the People's Commissariat for Agriculture. The doctrine was solidified at the 1935 Congress of the All-Union Lenin Academy of Agricultural Sciences, where Lysenko denounced traditional geneticists. This period coincided with the Great Purge, allowing Lysenko and his allies to attack opponents within institutions like the Institute of Genetics of the Academy of Sciences of the Soviet Union.

Core doctrines and practices

Central to the doctrine was a vehement rejection of classical genetics, dismissing the work of Gregor Mendel, Thomas Hunt Morgan, and August Weismann as idealist and reactionary. It promoted the concept that organisms could inherit characteristics acquired through environmental influences or practice, a form of Lamarckism. In agriculture, this led to practices like the dense cluster planting of trees, the transformation of wheat into rye, and the misguided breeding of cattle. Lysenkoists denied the existence of genes and the role of DNA, arguing instead for a "theory of phasic development" in plants. They championed the idea of intraspecific cooperation, opposing Darwinian selection and the struggle for existence within species.

Impact on Soviet science and agriculture

The imposition of these ideas caused severe, long-term damage to Soviet agriculture. Crop yields failed to meet projections, contributing to inefficiencies and shortages. In biological science, entire research fields were dismantled; the study of cytology and molecular biology was severely stunted for a generation. Prominent geneticists like Nikolai Vavilov were arrested, with Vavilov dying in prison, while others, including Georgii Karpechenko and Israel Agol, were executed or perished in the Gulag. Research institutes, notably the main Institute of Genetics in Moscow, were purged and reoriented toward supporting the flawed theories, setting back Soviet biology for decades.

Political enforcement and suppression

The doctrine was maintained not by scientific merit but through direct political intervention by the Communist Party of the Soviet Union and the NKVD. Joseph Stalin personally endorsed Lysenko, providing him with immense power as president of the All-Union Lenin Academy of Agricultural Sciences. Critical scientists were denounced as "wreckers" or agents of Western imperialism. The August 1948 session of the Academy, orchestrated by Lysenko with backing from Stalin, formally outlawed Mendelian genetics throughout the Soviet Union. Following this, geneticists were dismissed from posts at universities in Leningrad, Kyiv, and elsewhere, textbooks were destroyed, and journals like Journal of General Biology were censored.

Decline and legacy

The influence began to wane after the death of Joseph Stalin in 1953 and the subsequent rise of Nikita Khrushchev, though Lysenko retained significant support for several more years. Critical voices, such as physicists Andrei Sakharov and Vitaly Ginzburg, began to publicly condemn the doctrine in the late 1950s. The advent of modern molecular biology and the central dogma of Francis Crick made its tenets untenable. By the mid-1960s, following Khrushchev's ouster, a major rehabilitation of genetics began under the leadership of scientists like Vladimir Pavlovich Efroimson. The episode remains a seminal case study in the politicization of science, often compared to other state-enforced pseudosciences like Nazi racial theory, and a warning of the consequences when ideology suppresses academic freedom.

Category:Pseudoscience Category:History of science Category:Soviet Union