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. 2023 Jun;53(2):119-127.
doi: 10.1177/14782715231162675. Epub 2023 Mar 16.

The take-off of Drosophila research in 1930-1950s Edinburgh

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Free article

The take-off of Drosophila research in 1930-1950s Edinburgh

Robin Beaven. J R Coll Physicians Edinb. 2023 Jun.
Free article

Abstract

The fruit fly, Drosophila melanogaster, is a simple and powerful model organism. It has played a critical role over more than a century, for example in establishing the field of genetics, and in foundational insights into the molecular basis of development. From the 1930s until today, researchers at the University of Edinburgh have used Drosophila to tackle questions in basic and biomedical science. Here the history of the initial decades of this research is explored, beginning with the introduction of Drosophila research to Edinburgh by Francis Albert Eley Crew, in the newly established Institute of Animal Genetics. This period of research includes the discovery that chemicals can cause genetic mutation. This was demonstrated by research of the effects of mustard gas on flies by Charlotte Auerbach and colleagues, guided by the future Nobel laureate Hermann Muller. Drosophila research was also formative in Conrad Hal Waddington's conceptual thinking about developmental biology, including in his vision of the epigenetic landscape. This holistic, systems-level view of the control of development was far before its time and has continued to be influential to this day in our conceptualisation of developmental biology and in the increasingly important field of systems biology. Waddington's experiments with Drosophila in Edinburgh also gave rise to the evolutionary concept of genetic assimilation, in which an environmentally induced phenotype subsequently becomes genetically encoded.

Keywords: C.H. Waddington; Charlotte Auerbach; F.A.E. Crew; Hermann Muller; Institute of Animal Genetics; chemical mutagenesis; epigenetic landscape; genetic assimilation; mustard gas.

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