Evolving together, evolving apart : measuring the fitness of rhizobial bacteria in and out of symbiosis with leguminous plants

© 2019 The Author New Phytologist © 2019 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 228(2020), 1 vom: 01. Okt., Seite 28-34
1. Verfasser: Burghardt, Liana T (VerfasserIn)
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, U.S. Gov't, Non-P.H.S. Review bacterial competition beneficial inoculants environmental variation facultative mutualism legume-rhizobia nitrogen fixation nodule occupancy plant-microbe interaction
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520 |a Most plant-microbe interactions are facultative, with microbes experiencing temporally and spatially variable selection. How this variation affects microbial evolution is poorly understood. Given its tractability and ecological and agricultural importance, the legume-rhizobia nitrogen-fixing symbiosis is a powerful model for identifying traits and genes underlying bacterial fitness. New technologies allow high-throughput measurement of the relative fitness of bacterial mutants, strains and species in mixed inocula in the host, rhizosphere and soil environments. I consider how host genetic variation (G × G), other environmental factors (G × E), and host life-cycle variation may contribute to the maintenance of genetic variation and adaptive trajectories of rhizobia - and, potentially, other facultative symbionts. Lastly, I place these findings in the context of developing beneficial inoculants in a changing climate 
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650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
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650 4 |a legume-rhizobia 
650 4 |a nitrogen fixation 
650 4 |a nodule occupancy 
650 4 |a plant-microbe interaction 
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