Johannsen, Wilhelm Ludwig

Abstract

(1857–1927) Danish biologist, theoretician and experimentalist, who clarified the basis of classical genetics and its relation to evolution by introducing the concepts of gene, genotype and phenotype.

Keywords: gene; genotype; phenotype; evolution; heredity

Further Reading

Brierley WB (1928) Obituary notice. Professor W. Johannsen. The Annals of Applied Biology 15: 699–703.

Churchill FB (1974) William Johannsen and the genotype concept. Journal of the History of Biology 7: 5–30.

Dunn LC (1973) Johannsen, Wilhelm Ludwig. Dictionary of Scientific Biographies 7: 113–115.

Johannsen WL (1911) The genotype conception of heredity. American Naturalist 45: 129–159.

Roll‐Hansen N (1978) The genotype theory of Wilhelm Johannsen and its relation to plant breeding and the study of evolution. Centaurus 22: 201–235.

Roll‐Hansen N (1989) The crucial experiment of Wilhelm Johannsen. Biology and Philosophy 4: 303–329.

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How to Cite close
Roll‐Hansen, Nils(Sep 2005) Johannsen, Wilhelm Ludwig. In: eLS. John Wiley & Sons Ltd, Chichester. http://www.els.net [doi: 10.1038/npg.els.0002539]