|Lamarck, Waddington, and the Theory of Adaptation|
Jonathan Bard (Edinburgh)
29 juin 2009
(Session " Lamarck et ses successeurs ").
Lamarck emphasised the role of the environment in adaptation through "l’influence des circonstances", but Darwin, by using this idea in his theory of Pangenesis, rendered it incompatible with the neo-Darwinist synthesis which integrated variation and selection with genetics. Waddington invented genetic assimilation in the 1950s, a process that capitalises on genetic variability within a population to speed up adaptation, so giving genetic credibility to Lamarck’s original ideas. The talk will discuss Lamarck and his historical context, Waddington’s experimental data and the status of adaptation today.
|Jonathan Bard (Edinburgh)|
University of Edinburgh - Department of Biomedical Science.