Context dependence in the symbiosis between Dictyostelium discoideum and Paraburkholderia
Abstract Symbiotic interactions change with environmental context. Measuring these context‐dependent effects in hosts and symbionts is critical to determining the nature of symbiotic interactions. We investigated context dependence in the symbiosis between social amoeba hosts and their inedible Para...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Oxford University Press
2022-06-01
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| Series: | Evolution Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/evl3.281 |
| _version_ | 1827832826024689664 |
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| author | Trey J. Scott David C. Queller Joan E. Strassmann |
| author_facet | Trey J. Scott David C. Queller Joan E. Strassmann |
| author_sort | Trey J. Scott |
| collection | DOAJ |
| description | Abstract Symbiotic interactions change with environmental context. Measuring these context‐dependent effects in hosts and symbionts is critical to determining the nature of symbiotic interactions. We investigated context dependence in the symbiosis between social amoeba hosts and their inedible Paraburkholderia bacterial symbionts, where the context is the abundance of host food bacteria. Paraburkholderia have been shown to harm hosts dispersed to food‐rich environments, but aid hosts dispersed to food‐poor environments by allowing hosts to carry food bacteria. Through measuring symbiont density and host spore production, we show that this food context matters in three other ways. First, it matters for symbionts, who suffer a greater cost from competition with food bacteria in the food‐rich context. Second, it matters for host‐symbiont conflict, changing how symbiont density negatively impacts host spore production. Third, data‐based simulations show that symbiosis often provides a long‐term fitness advantage for hosts after rounds of growth and dispersal in variable food contexts, especially when conditions are harsh with little food. These results show how food context can have many consequences for the Dictyostelium‐Paraburkholderia symbiosis and that both sides can frequently benefit. |
| first_indexed | 2024-03-12T05:19:24Z |
| format | Article |
| id | doaj.art-166dbd7e23844e1fb1b9a2277f6d1e57 |
| institution | Directory Open Access Journal |
| issn | 2056-3744 |
| language | English |
| last_indexed | 2024-03-12T05:19:24Z |
| publishDate | 2022-06-01 |
| publisher | Oxford University Press |
| record_format | Article |
| series | Evolution Letters |
| spelling | doaj.art-166dbd7e23844e1fb1b9a2277f6d1e572023-09-03T07:45:53ZengOxford University PressEvolution Letters2056-37442022-06-016324525410.1002/evl3.281Context dependence in the symbiosis between Dictyostelium discoideum and ParaburkholderiaTrey J. Scott0David C. Queller1Joan E. Strassmann2Department of Biology Washington University in St. Louis St. Louis Missouri 63130Department of Biology Washington University in St. Louis St. Louis Missouri 63130Department of Biology Washington University in St. Louis St. Louis Missouri 63130Abstract Symbiotic interactions change with environmental context. Measuring these context‐dependent effects in hosts and symbionts is critical to determining the nature of symbiotic interactions. We investigated context dependence in the symbiosis between social amoeba hosts and their inedible Paraburkholderia bacterial symbionts, where the context is the abundance of host food bacteria. Paraburkholderia have been shown to harm hosts dispersed to food‐rich environments, but aid hosts dispersed to food‐poor environments by allowing hosts to carry food bacteria. Through measuring symbiont density and host spore production, we show that this food context matters in three other ways. First, it matters for symbionts, who suffer a greater cost from competition with food bacteria in the food‐rich context. Second, it matters for host‐symbiont conflict, changing how symbiont density negatively impacts host spore production. Third, data‐based simulations show that symbiosis often provides a long‐term fitness advantage for hosts after rounds of growth and dispersal in variable food contexts, especially when conditions are harsh with little food. These results show how food context can have many consequences for the Dictyostelium‐Paraburkholderia symbiosis and that both sides can frequently benefit.https://doi.org/10.1002/evl3.281Bet‐hedgingcompetitioncontext dependenceDictyostelium discoideumParaburkholderiasymbiosis |
| spellingShingle | Trey J. Scott David C. Queller Joan E. Strassmann Context dependence in the symbiosis between Dictyostelium discoideum and Paraburkholderia Evolution Letters Bet‐hedging competition context dependence Dictyostelium discoideum Paraburkholderia symbiosis |
| title | Context dependence in the symbiosis between Dictyostelium discoideum and Paraburkholderia |
| title_full | Context dependence in the symbiosis between Dictyostelium discoideum and Paraburkholderia |
| title_fullStr | Context dependence in the symbiosis between Dictyostelium discoideum and Paraburkholderia |
| title_full_unstemmed | Context dependence in the symbiosis between Dictyostelium discoideum and Paraburkholderia |
| title_short | Context dependence in the symbiosis between Dictyostelium discoideum and Paraburkholderia |
| title_sort | context dependence in the symbiosis between dictyostelium discoideum and paraburkholderia |
| topic | Bet‐hedging competition context dependence Dictyostelium discoideum Paraburkholderia symbiosis |
| url | https://doi.org/10.1002/evl3.281 |
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