Cooperation in Microbial Populations: Theory and Experimental Model Systems
نویسندگان
چکیده
منابع مشابه
Cooperation in viscous populations - Experimental evidence
We experimentally investigate the effect of imperfect separation of groups (population viscosity) on group selection and cooperation in a standard prisoner’s dilemma environment. Subjects can repeatedly choose between two groups, that differ in the defector gain in the associated prisoner’s dilemma. Choosing into the group with the smaller defector-gain can signal one’s willingness to cooperate...
متن کاملGrowth dynamics and the evolution of cooperation in microbial populations
Microbes providing public goods are widespread in nature despite running the risk of being exploited by free-riders. However, the precise ecological factors supporting cooperation are still puzzling. Following recent experiments, we consider the role of population growth and the repetitive fragmentation of populations into new colonies mimicking simple microbial life-cycles. Individual-based mo...
متن کاملThe Evolution of Cooperation and Conflict , Experimental Model Systems and Theory
Dedication For my father, Martin Gordon Sachs, who passed away midway through my Ph. D. Although he was not a scientist by vocation, he had an abiding interest in science and he shared that with me from a very early age. Thanks, Dad. v Acknowledgements Above all I would like to thank my major advisor, James J. Bull. He offered seemingly unending patience, wisdom, inspiration, technical assistan...
متن کاملEco-evolutionary feedbacks can rescue cooperation in microbial populations
Bacterial populations whose growth depends on the cooperative production of public goods are usually threatened by the rise of cheaters that do not contribute but just consume the common resource. Minimizing cheater invasions appears then as a necessary mechanism to maintain these populations. However, that invasions result instead in the persistence of cooperation is a prospect that has yet re...
متن کاملRange expansion promotes cooperation in an experimental microbial metapopulation.
Natural populations throughout the tree of life undergo range expansions in response to changes in the environment. Recent theoretical work suggests that range expansions can have a strong effect on evolution, even leading to the fixation of deleterious alleles that would normally be outcompeted in the absence of migration. However, little is known about how range expansions might influence all...
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ژورنال
عنوان ژورنال: Journal of Molecular Biology
سال: 2019
ISSN: 0022-2836
DOI: 10.1016/j.jmb.2019.09.023