Microbial symbionts exhibit broad genotypic variation in their fitness effects on hosts, leaving hosts vulnerable to costly partnerships. Interspecific conflict and partner-maladaptation are frameworks to explain this variation, with different implications for mutualism stability. We investigated the mutualist service of nitrogen fixation in a metapopulation of root-nodule forming Bradyrhizobium symbionts in Acmispon hosts. We uncovered Bradyrhizobium genotypes that provide negligible mutualist services to hosts and had superior in planta fitness during clonal infections, consistent with cheater strains that destabilise mutualisms. Interspecific conflict was also confirmed at the metapopulation level - by a significant negative association ...
Many models of mutualisms show that mutualisms are unstable if hosts lack mechanisms enabling prefer...
Symbioses are modelled as evolutionarily and ecologically variable with fitness outcomes for hosts s...
UnlabelledRhizobia are best known for nodulating legume roots and fixing atmospheric nitrogen for th...
Microbial symbionts exhibit broad genotypic variation in their fitness effects on hosts, leaving hos...
The capacity of beneficial microbes to compete for host infection-and the ability of hosts to discri...
Bacterial mutualists generate major fitness benefits for eukaryotes, reshaping the host phenotype an...
Microbial mutualists provide substantial benefits to hosts that feed back to enhance the fitness of ...
Mutualisms are thought to be destabilized by exploitative mutants that receive benefits from partner...
Microbes can dramatically alter the fitness of host organisms, ranging in effect from mutualistic to...
Bacterial mutualists generate major fitness benefits for eukaryotes, reshaping the host phenotype an...
Legumes can preferentially select beneficial rhizobial symbionts and sanction ineffective strains th...
Efficient host control predicts the extirpation of ineffective symbionts, but they are nonetheless w...
Root nodulating rhizobia are nearly ubiquitous in soils and provide the critical service of nitrogen...
The stabilization of host–symbiont mutualism against the emergence of parasitic individuals is pivot...
Understanding the drivers of variation in symbiont quality is a fundamental objective in the study o...
Many models of mutualisms show that mutualisms are unstable if hosts lack mechanisms enabling prefer...
Symbioses are modelled as evolutionarily and ecologically variable with fitness outcomes for hosts s...
UnlabelledRhizobia are best known for nodulating legume roots and fixing atmospheric nitrogen for th...
Microbial symbionts exhibit broad genotypic variation in their fitness effects on hosts, leaving hos...
The capacity of beneficial microbes to compete for host infection-and the ability of hosts to discri...
Bacterial mutualists generate major fitness benefits for eukaryotes, reshaping the host phenotype an...
Microbial mutualists provide substantial benefits to hosts that feed back to enhance the fitness of ...
Mutualisms are thought to be destabilized by exploitative mutants that receive benefits from partner...
Microbes can dramatically alter the fitness of host organisms, ranging in effect from mutualistic to...
Bacterial mutualists generate major fitness benefits for eukaryotes, reshaping the host phenotype an...
Legumes can preferentially select beneficial rhizobial symbionts and sanction ineffective strains th...
Efficient host control predicts the extirpation of ineffective symbionts, but they are nonetheless w...
Root nodulating rhizobia are nearly ubiquitous in soils and provide the critical service of nitrogen...
The stabilization of host–symbiont mutualism against the emergence of parasitic individuals is pivot...
Understanding the drivers of variation in symbiont quality is a fundamental objective in the study o...
Many models of mutualisms show that mutualisms are unstable if hosts lack mechanisms enabling prefer...
Symbioses are modelled as evolutionarily and ecologically variable with fitness outcomes for hosts s...
UnlabelledRhizobia are best known for nodulating legume roots and fixing atmospheric nitrogen for th...