Publications des scientifiques de l'IRD

Clerissi C., Touchon M., Capela D., Tang M. X., Cruveiller S., Parker M. A., Moulin Lionel, Masson-Boivin C., Rocha E. P. C. (2018). Parallels between experimental and natural evolution of legume symbionts [+ Corrigendum no 4641 du 02 nov. 2018]. Nature Communications, 9, art. 2264 [13 p. + corrigendum 4641 du 02 nov. 2018]. ISSN 2041-1723.

Titre du document
Parallels between experimental and natural evolution of legume symbionts [+ Corrigendum no 4641 du 02 nov. 2018]
Année de publication
2018
Type de document
Article référencé dans le Web of Science WOS:000434781600004
Auteurs
Clerissi C., Touchon M., Capela D., Tang M. X., Cruveiller S., Parker M. A., Moulin Lionel, Masson-Boivin C., Rocha E. P. C.
Source
Nature Communications, 2018, 9, art. 2264 [13 p. + corrigendum 4641 du 02 nov. 2018] ISSN 2041-1723
The emergence of symbiotic interactions has been studied using population genomics in nature and experimental evolution in the laboratory, but the parallels between these processes remain unknown. Here we compare the emergence of rhizobia after the horizontal transfer of a symbiotic plasmid in natural populations of Cupriavidus taiwanensis, over 10 MY ago, with the experimental evolution of symbiotic Ralstonia solanacearum for a few hundred generations. In spite of major differences in terms of time span, environment, genetic background, and phenotypic achievement, both processes resulted in rapid genetic diversification dominated by purifying selection. We observe no adaptation in the plasmid carrying the genes responsible for the ecological transition. Instead, adaptation was associated with positive selection in a set of genes that led to the co-option of the same quorum-sensing system in both processes. Our results provide evidence for similarities in experimental and natural evolutionary transitions and highlight the potential of comparisons between both processes to understand symbiogenesis.
Plan de classement
Biotechnologies [084]
Localisation
Fonds IRD [F B010073111]
Identifiant IRD
fdi:010073111
Contact