In Regard to Likhacheva et al

To the Editor: In their recent article, "The red beam: Past, present, and future of radiation oncology in Russia," Anna Likhacheva and colleagues mentioned Lysenkoism. According to their statement, Lysenko argued that a single generation of a crop could be "taught" certain advantageous characteristics, which would be transmitted to subsequent generations (1). We fear that this statement is not supported by historical evidence. Actually, Lysenko emphasized that more than 2 generations (usually 3 or 4 generations), instead of a single generation, were necessary for the inheritance of acquired characters.

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