Symbiosis within symbiosis: evolving nitrogen-fixing legume symbionts - Laboratoire des Interactions Plantes Microbes Environnement Accéder directement au contenu
Article Dans Une Revue Trends in Microbiology Année : 2016

Symbiosis within symbiosis: evolving nitrogen-fixing legume symbionts

Résumé

Bacterial accessory genes are genomic symbionts with an evolutionary history and future that is different from that of their hosts. Packages of accessory genes move from strain to strain and confer important adaptations, such as interaction with eukaryotes. The ability to fix nitrogen with legumes is a remarkable example of a complex trait spread by horizontal transfer of a few key symbiotic genes, converting soil bacteria into legume symbionts. Rhizobia belong to hundreds of species restricted to a dozen genera of the Alphaproteobacteria and Betaproteobacteria, suggesting infrequent successful transfer between genera but frequent successful transfer within genera. Here we review the genetic and environmental conditions and selective forces that have shaped evolution of this complex symbiotic trait.
Fichier non déposé

Dates et versions

hal-02636067 , version 1 (27-05-2020)

Identifiants

Citer

Philippe Remigi, Jun Zhu, J. Peter W. Young, Catherine Masson-Boivin. Symbiosis within symbiosis: evolving nitrogen-fixing legume symbionts. Trends in Microbiology, 2016, 24 (1), pp.63-75. ⟨10.1016/j.tim.2015.10.007⟩. ⟨hal-02636067⟩
14 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More