Nikolai Ivanovich Vavilov: Plant Geographer, Geneticist, Martyr of Science

Abstract

Nikolai Ivanovich Vavilov (1887–1943), one of the pioneers of 20th century plant breeding, is best known for seminal work in identifying centers of origins and diversity for cultivated plants. Vavilov studied genetics with William Bateson from 1913 to 1914 at the John Innis Horticultural Institute. In 1921, he was chosen by Vladimir Lenin to head the Branch of Applied Botany in Petrograd (St. Petersburg) and rose to be the Director of the All-Union Institute of Agriculture in Leningrad, where he oversaw agricultural research for the entire country. By 1934, Vavilov established more than 400 research institutes and experiment stations with a staff of 20,000. His efforts established the Soviet Union as a world leader in genetics and plant breeding in the 1920s and early 1930s. Vavilov carried out an extensive series of expeditions worldwide, including the United States, to collect germplasm; and he created the world’s largest repository, over 250,000 seed accessions. However, as a result of famine in the Soviet Union in the late 1920s, partly as a result of forced collectivization of peasants, Vavilov came in conflict with an ambitious agronomist, Trofim Lysenko, who came to prominence with an agricultural technique proposed in 1928, of exposing chilled, soaked seeds of wheat (dubbed vernalization) to extend production in northern areas of Russia. Lysenko’s rejection of Mendelian genetics won the support of Joseph Stalin, leading to the arrest and death sentence of Vavilov, although this was later commuted to 20 years imprisonment. Vavilov died of starvation in prison in 1943, thus entering the select group of martyrs of science along with Gordiano Bruno, Galileo Galilei, Antoine Lavoisier, and Georgii Karpechenko.

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