A SLOWLY EVOLVING HOST MOVES FIRST IN SYMBIOTIC INTERACTIONS
Symbiotic relationships, both parasitic and mutualistic, are ubiquitous in nature. Understanding how these symbioses evolve, from bacteria and their phages to humans and our gut microflora, is crucial in understanding how life operates. Often, symbioses consist of a slowly evolving host species with...
| Main Authors: | , |
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| Format: | Article |
| Language: | en_US |
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Wiley Blackwell
2014
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| Online Access: | http://hdl.handle.net/1721.1/88436 https://orcid.org/0000-0003-4583-8555 |
| _version_ | 1826193500249522176 |
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| author | Damore, James A. Gore, Jeff |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Damore, James A. Gore, Jeff |
| author_sort | Damore, James A. |
| collection | MIT |
| description | Symbiotic relationships, both parasitic and mutualistic, are ubiquitous in nature. Understanding how these symbioses evolve, from bacteria and their phages to humans and our gut microflora, is crucial in understanding how life operates. Often, symbioses consist of a slowly evolving host species with each host only interacting with its own subpopulation of symbionts. The Red Queen hypothesis describes coevolutionary relationships as constant arms races with each species rushing to evolve an advantage over the other, suggesting that faster evolution is favored. Here, we use a simple game theoretic model of host–symbiont coevolution that includes population structure to show that if the symbionts evolve much faster than the host, the equilibrium distribution is the same as it would be if it were a sequential game where the host moves first against its symbionts. For the slowly evolving host, this will prove to be advantageous in mutualisms and a handicap in antagonisms. The result follows from rapid symbiont adaptation to its host and is robust to changes in the parameters, even generalizing to continuous and multiplayer games. Our findings provide insight into a wide range of symbiotic phenomena and help to unify the field of coevolutionary theory. |
| first_indexed | 2024-09-23T09:40:09Z |
| format | Article |
| id | mit-1721.1/88436 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:40:09Z |
| publishDate | 2014 |
| publisher | Wiley Blackwell |
| record_format | dspace |
| spelling | mit-1721.1/884362022-09-30T16:02:30Z A SLOWLY EVOLVING HOST MOVES FIRST IN SYMBIOTIC INTERACTIONS Damore, James A. Gore, Jeff Massachusetts Institute of Technology. Department of Physics Damore, James A. Gore, Jeff Symbiotic relationships, both parasitic and mutualistic, are ubiquitous in nature. Understanding how these symbioses evolve, from bacteria and their phages to humans and our gut microflora, is crucial in understanding how life operates. Often, symbioses consist of a slowly evolving host species with each host only interacting with its own subpopulation of symbionts. The Red Queen hypothesis describes coevolutionary relationships as constant arms races with each species rushing to evolve an advantage over the other, suggesting that faster evolution is favored. Here, we use a simple game theoretic model of host–symbiont coevolution that includes population structure to show that if the symbionts evolve much faster than the host, the equilibrium distribution is the same as it would be if it were a sequential game where the host moves first against its symbionts. For the slowly evolving host, this will prove to be advantageous in mutualisms and a handicap in antagonisms. The result follows from rapid symbiont adaptation to its host and is robust to changes in the parameters, even generalizing to continuous and multiplayer games. Our findings provide insight into a wide range of symbiotic phenomena and help to unify the field of coevolutionary theory. National Institutes of Health (U.S.) (K99 Pathways to Independence Award) 2014-07-18T14:17:17Z 2014-07-18T14:17:17Z 2011-04 2010-12 Article http://purl.org/eprint/type/JournalArticle 00143820 1558-5646 http://hdl.handle.net/1721.1/88436 Damore, James A., and Jeff Gore. “A SLOWLY EVOLVING HOST MOVES FIRST IN SYMBIOTIC INTERACTIONS.” Evolution 65, no. 8 (August 2011): 2391–2398. https://orcid.org/0000-0003-4583-8555 en_US http://dx.doi.org/10.1111/j.1558-5646.2011.01299.x Evolution Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Wiley Blackwell PMC |
| spellingShingle | Damore, James A. Gore, Jeff A SLOWLY EVOLVING HOST MOVES FIRST IN SYMBIOTIC INTERACTIONS |
| title | A SLOWLY EVOLVING HOST MOVES FIRST IN SYMBIOTIC INTERACTIONS |
| title_full | A SLOWLY EVOLVING HOST MOVES FIRST IN SYMBIOTIC INTERACTIONS |
| title_fullStr | A SLOWLY EVOLVING HOST MOVES FIRST IN SYMBIOTIC INTERACTIONS |
| title_full_unstemmed | A SLOWLY EVOLVING HOST MOVES FIRST IN SYMBIOTIC INTERACTIONS |
| title_short | A SLOWLY EVOLVING HOST MOVES FIRST IN SYMBIOTIC INTERACTIONS |
| title_sort | slowly evolving host moves first in symbiotic interactions |
| url | http://hdl.handle.net/1721.1/88436 https://orcid.org/0000-0003-4583-8555 |
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