Farming and public goods production in Caenorhabditis elegans populations

The ecological and evolutionary dynamics of populations are shaped by the strategies they use to produce and use resources. However, our understanding of the interplay between the genetic, behavioral, and environmental factors driving these strategies is limited. Here, we report on a Caenorhabditis...

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發表在:Proc Natl Acad Sci U S A
Main Authors: Thutupalli, Shashi, Uppaluri, Sravanti, Constable, George W. A., Levin, Simon A., Stone, Howard A., Tarnita, Corina E., Brangwynne, Clifford P.
格式: Artigo
語言:Inglês
出版: National Academy of Sciences 2017
主題:
Biological Sciences
在線閱讀:https://ncbi.nlm.nih.gov/pmc/articles/PMC5338499/
https://ncbi.nlm.nih.gov/pubmed/28183799
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.1608961114
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spelling pubmed-53384992017-08-28 Farming and public goods production in Caenorhabditis elegans populations Thutupalli, Shashi Uppaluri, Sravanti Constable, George W. A. Levin, Simon A. Stone, Howard A. Tarnita, Corina E. Brangwynne, Clifford P. Proc Natl Acad Sci U S A Biological Sciences The ecological and evolutionary dynamics of populations are shaped by the strategies they use to produce and use resources. However, our understanding of the interplay between the genetic, behavioral, and environmental factors driving these strategies is limited. Here, we report on a Caenorhabditis elegans–Escherichia coli (worm–bacteria) experimental system in which the worm-foraging behavior leads to a redistribution of the bacterial food source, resulting in a growth advantage for both organisms, similar to that achieved via farming. We show experimentally and theoretically that the increased resource growth represents a public good that can benefit all other consumers, regardless of whether or not they are producers. Mutant worms that cannot farm bacteria benefit from farming by other worms in direct proportion to the fraction of farmers in the worm population. The farming behavior can therefore be exploited if it is associated with either energetic or survival costs. However, when the individuals compete for resources with their own type, these costs can result in an increased population density. Altogether, our findings reveal a previously unrecognized mechanism of public good production resulting from the foraging behavior of C. elegans, which has important population-level consequences. This powerful system may provide broad insight into exploration–exploitation tradeoffs, the resultant ecoevolutionary dynamics, and the underlying genetic and neurobehavioral driving forces of multispecies interactions. National Academy of Sciences 2017-02-28 2017-02-09 /pmc/articles/PMC5338499/ /pubmed/28183799 http://dx.doi.org/10.1073/pnas.1608961114 Text en
institution US NLM
collection PubMed Central
language Inglês
format Artigo
topic Biological Sciences
spellingShingle Biological Sciences
Thutupalli, Shashi
Uppaluri, Sravanti
Constable, George W. A.
Levin, Simon A.
Stone, Howard A.
Tarnita, Corina E.
Brangwynne, Clifford P.
Farming and public goods production in Caenorhabditis elegans populations
description The ecological and evolutionary dynamics of populations are shaped by the strategies they use to produce and use resources. However, our understanding of the interplay between the genetic, behavioral, and environmental factors driving these strategies is limited. Here, we report on a Caenorhabditis elegans–Escherichia coli (worm–bacteria) experimental system in which the worm-foraging behavior leads to a redistribution of the bacterial food source, resulting in a growth advantage for both organisms, similar to that achieved via farming. We show experimentally and theoretically that the increased resource growth represents a public good that can benefit all other consumers, regardless of whether or not they are producers. Mutant worms that cannot farm bacteria benefit from farming by other worms in direct proportion to the fraction of farmers in the worm population. The farming behavior can therefore be exploited if it is associated with either energetic or survival costs. However, when the individuals compete for resources with their own type, these costs can result in an increased population density. Altogether, our findings reveal a previously unrecognized mechanism of public good production resulting from the foraging behavior of C. elegans, which has important population-level consequences. This powerful system may provide broad insight into exploration–exploitation tradeoffs, the resultant ecoevolutionary dynamics, and the underlying genetic and neurobehavioral driving forces of multispecies interactions.
author Thutupalli, Shashi
Uppaluri, Sravanti
Constable, George W. A.
Levin, Simon A.
Stone, Howard A.
Tarnita, Corina E.
Brangwynne, Clifford P.
author_facet Thutupalli, Shashi
Uppaluri, Sravanti
Constable, George W. A.
Levin, Simon A.
Stone, Howard A.
Tarnita, Corina E.
Brangwynne, Clifford P.
author_sort Thutupalli, Shashi
title Farming and public goods production in Caenorhabditis elegans populations
title_short Farming and public goods production in Caenorhabditis elegans populations
title_full Farming and public goods production in Caenorhabditis elegans populations
title_fullStr Farming and public goods production in Caenorhabditis elegans populations
title_full_unstemmed Farming and public goods production in Caenorhabditis elegans populations
title_sort farming and public goods production in caenorhabditis elegans populations
publisher National Academy of Sciences
container_title Proc Natl Acad Sci U S A
publishDate 2017
url https://ncbi.nlm.nih.gov/pmc/articles/PMC5338499/
https://ncbi.nlm.nih.gov/pubmed/28183799
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.1608961114
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