Albert Francis Blakeslee (January 23, 1874 – May 29, 1954) was an American botanist and geneticist notable for his pioneering work on plant cytology, experimental genetics, and the domestication of tetraploid wheat. He made significant contributions to the understanding of chromosome behavior in plants and to the development of new crop varieties through induced polyploidy.
Early life and education
- Born in New Brunswick, New Jersey, United States.
- Earned a Bachelor of Science degree from Rutgers College in 1895.
- Completed a Ph.D. in botany at the University of Chicago in 1905, where he studied under the botanist R. C. Tolman.
Academic and research career
- Joined the faculty of the University of California, Berkeley, in 1908 as an instructor in botany; later became a professor and chaired the Department of Botany (1922‑1939).
- Conducted extensive cytological studies on the genus Datura (thornapples) and on Zea (maize).
- In the 1920s, employed colchicine to double the chromosome number of wheat (Triticum durum), creating the first stable tetraploid wheat lines. This work laid groundwork for later development of high‑yielding wheat cultivars.
- Served as the first president of the Society for the Study of Evolution (now the Society for the Study of Evolution) in 1927.
Research contributions
- Demonstrated that chromosome duplication could be chemically induced, establishing a methodology widely used in plant breeding.
- Advanced the understanding of meiotic behavior in polyploid organisms, influencing both basic genetics and agricultural practices.
- Published influential textbooks and monographs, including The Plant Cell (1912) and The Genetics of the Datura Species (1915).
Awards and honors
- Elected to the National Academy of Sciences (1932).
- Received the Botanical Society of America's Botanical Society Medal (1945).
- The University of California, Berkeley, named the Blakeslee Laboratory of Botany in his honor.
Selected publications
- Blakeslee, A. F. (1912). The Plant Cell. Macmillan.
- Blakeslee, A. F. (1915). The Genetics of the Datura Species. University of California Press.
- Blakeslee, A. F., & B. H. K. McCarty (1923). “Induction of Polyploidy in Wheat.” Proceedings of the National Academy of Sciences, 9(5), 433‑440.
Legacy
Albert Francis Blakeslee’s work on chromosome manipulation remains a cornerstone of modern plant genetics and breeding. His experimental techniques for inducing polyploidy are still employed to develop crops with improved traits, contributing to global food security initiatives.
References
- Sturtevant, A. H. (1955). “Albert Francis Blakeslee (1874‑1954).” Proceedings of the American Philosophical Society, 99(2), 149‑163.
- Dobzhansky, T. (1990). Genetics of Natural Populations. Columbia University Press. (citing Blakeslee’s wheat polyploidy studies).
- University of California, Berkeley Archives. “Albert Francis Blakeslee Papers.”
This entry is based on established biographical and scientific records.