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Marc-André Selosse (MNHN), The evolution of interdependency between symbiotic organisms by neutral evolution
6 October 2017 | 14 h 30 min - 16 h 00 min
Marc-André Selosse (Muséum national d’Histoire Naturelle; Institut de Systématique, Évolution, Biodiversité; Sorbonne Universités)
Professor, Interactions and evolution of vegetal and fungal models: Symbiosis, mycorrhizae, mycology, microbiology, botany, ecology, evolution.
The evolution of interdependency between symbiotic organisms by neutral evolution
Symbiosis evolution is often viewed as a progress, with emergence of new adaptive properties. However, symbiosis also enhances the interdependence between partners. I describe several such interdependences, and emphasize that they arise without emergence of new property. Generally, when two partners permanently interact, a mutation in one partner can be complemented by the other. Independency is then lost without any positive selection, in a neutral evolution. The accumulation of such steps makes the reversion to independency unlikely, and drives interdependency in symbiosis.
More about Marc-André Selosse here.
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