Data from: Recurrent mutualism breakdown events in a legume rhizobia metapopulation

Joel Sachs, Kelsey Gano-Cohen, Camille Wendlandt, Khadija Al Moussawi, Peter Stokes, Kenjiro Quides, Alexandra Weisberg & Jeff Chang
Bacterial mutualists generate major fitness benefits for eukaryotes, reshaping the host phenotype and its interactions with the environment. Yet microbial mutualist populations are predicted to generate mutants that defect from providing costly services to hosts while maintaining the capacity to exploit host resources. Here, we examined the mutualist service of symbiotic nitrogen fixation in a metapopulation of root-nodulating Bradyrhizobium spp. that associate with the native legume Acmispon strigosus. We quantified mutualism traits of 85 Bradyrhizobium...
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