Tomoko Ohta (太田 朋子 Ōta Tomoko, born September 7, 1933, Miyoshi, Aichi) is a Japanese scientist working on molecular evolution. She graduated from the University of Tokyo in 1956. After working on the neutral theory of evolution with her mentor, Motoo Kimura, she became convinced of the importance of the mutations that were nearly neutral. She developed the slightly deleterious model (Ohta, 1973), then a more general form, the nearly neutral theory of evolution. She worked at the Japanese National Institute of Genetics from 1969 to 1996, and, in 2002, she was elected to the United States National Academy of Sciences as a foreign associate in evolutionary biology.
Ohta and Richard Lewontin were jointly awarded the Crafoord Prize for 2015 "for their pioneering analyses and fundamental contributions to the understanding of genetic polymorphism".
List of books available in English
- Theoretical aspects of population genetics, Motoo Kimura and Tomoko Ohta (1971)
- Evolution and variation of multigene families, Tomoko Ohta (1980)
- Population genetics and molecular evolution: papers marking the sixtieth birthday of Motoo Kimura, edited by Tomoko Ohta and Kenichi Aoki (1985)
- Tomoko Ohta and the Nearly Neutral Theories: The role of a female geneticist in the neutralist-selectionist controversy, Tomoko Y. Steen (1996) Ph.D. Dissertation. (CORNELL UNIVERSITY)