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  Spatio-temporal control of mutualism in legumes helps spread symbiotic nitrogen fixation

Daubech, B., Remigi, P., de Moura, G. D., Marchetti, M., Pouzet, C., Auriac, M.-C., et al. (2017). Spatio-temporal control of mutualism in legumes helps spread symbiotic nitrogen fixation. eLife, 6: e28683. doi:10.7554/eLife.28683.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-1116-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-1117-C
Genre: Journal Article

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https://elifesciences.org/articles/28683 (Publisher version)
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 Creators:
Daubech, Benoit, Author
Remigi, Philippe, Author
de Moura, Ginaini Doin, Author
Marchetti, Marta, Author
Pouzet, Cécile, Author
Auriac, Marie-Christine, Author
Gokhale, Chaitanya S.1, Author              
Masson-Boivin, Catherine, Author
Capela, Delphine, Author
Affiliations:
1Research Group Theoretical Models of Eco-Evolutionary Dynamics, Department Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_2355692              

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Free keywords: mutualism; symbiosis; nitrogen fixation; sanction; evolution; rhizobium; legume
 Abstract: Mutualism is of fundamental importance in ecosystems. Which factors help to keep the relationship mutually beneficial and evolutionarily successful is a central question. We addressed this issue for one of the most significant mutualistic interactions on Earth, which associates plants of the leguminosae family and hundreds of nitrogen (N2)-fixing bacterial species. Here we analyze the spatio-temporal dynamics of fixers and non-fixers along the symbiotic process in the Cupriavidus taiwanensis-Mimosa pudica system. N2-fixing symbionts progressively outcompete isogenic non-fixers within root nodules, where N2-fixation occurs, even when they share the same nodule. Numerical simulations, supported by experimental validation, predict that rare fixers will invade a population dominated by non-fixing bacteria during serial nodulation cycles with a probability that is function of initial inoculum, plant population size and nodulation cycle length. Our findings provide insights into the selective forces and ecological factors that may have driven the spread of the N2-fixation mutualistic trait.

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Language(s): eng - English
 Dates: 2017-05-172017-10-112017-10-12
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.7554/eLife.28683
 Degree: -

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Title: eLife
Source Genre: Journal
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Publ. Info: Cambridge : eLife Sciences Publications
Pages: - Volume / Issue: 6 Sequence Number: e28683 Start / End Page: - Identifier: Other: 2050-084X
CoNE: /journals/resource/2050-084X