MIGRATION ENHANCES ADAPTATION IN BACTERIOPHAGE POPULATIONS EVOLVING IN ECOLOGICAL SINKS
Migration between populations can be a major evolutionary force. However, some disagreement exists as to precisely how migration affects population adaptation. Some theories emphasize the inhibitory effects of gene flow between locally adapted populations, whereas others propose that migration can e...
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| Veröffentlicht in: | Evolution 2013-01, Vol.67 (1), p.10-17 |
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| container_title | Evolution |
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| creator | Ching, Jane Musheyev, Svetlana A. Chowdhury, Dipabali Kim, Julie A. Choi, Yoon Dennehy, John J. |
| description | Migration between populations can be a major evolutionary force. However, some disagreement exists as to precisely how migration affects population adaptation. Some theories emphasize the inhibitory effects of gene flow between locally adapted populations, whereas others propose that migration can enhance adaptation. Migration has also been theorized to rescue sink populations from extinction. In our experiments, we serially passaged bacteriophage Φ6 host range mutants under sink conditions on a novel host while manipulating the source and number of migrants into these experimental populations. Migrants from two sources were used: mutant Φ6 phage able to infect a novel host (treatment) and wild-type Φ6 phage unable to infect a novel host (control). We used quadratic regressions to determine the relationship between the number of migrants per passage and the absolute fitnesses of experimental populations following 30 passages. Our results showed that migration from a control population had no effect on absolute fitnesses of our serially passaged populations following 30 passages. By contrast, the relationship between migrants per passage and absolute fitnesses for populations receiving migrants able to infect the novel host was best described by an upwardly concave curve. These results suggest that intermediate levels of migration can have favorable impacts on evolutionary adaptation. |
| doi_str_mv | 10.1111/j.1558-5646.2012.01742.x |
| format | Article |
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However, some disagreement exists as to precisely how migration affects population adaptation. Some theories emphasize the inhibitory effects of gene flow between locally adapted populations, whereas others propose that migration can enhance adaptation. Migration has also been theorized to rescue sink populations from extinction. In our experiments, we serially passaged bacteriophage Φ6 host range mutants under sink conditions on a novel host while manipulating the source and number of migrants into these experimental populations. Migrants from two sources were used: mutant Φ6 phage able to infect a novel host (treatment) and wild-type Φ6 phage unable to infect a novel host (control). We used quadratic regressions to determine the relationship between the number of migrants per passage and the absolute fitnesses of experimental populations following 30 passages. Our results showed that migration from a control population had no effect on absolute fitnesses of our serially passaged populations following 30 passages. By contrast, the relationship between migrants per passage and absolute fitnesses for populations receiving migrants able to infect the novel host was best described by an upwardly concave curve. These results suggest that intermediate levels of migration can have favorable impacts on evolutionary adaptation.</description><identifier>ISSN: 0014-3820</identifier><identifier>EISSN: 1558-5646</identifier><identifier>DOI: 10.1111/j.1558-5646.2012.01742.x</identifier><identifier>PMID: 23289558</identifier><language>eng</language><publisher>Malden, USA: Blackwell Publishing Inc</publisher><subject>Adaptation, Biological - genetics ; Bacteria ; Bacteriophage phi 6 - genetics ; Bacteriophage phi 6 - pathogenicity ; Bacteriophages ; Biological adaptation ; Ecosystem ; Emergence ; Evolution ; Evolutionary genetics ; experimental evolution ; Extinction ; gene flow ; Genetic Fitness ; Genetic mutation ; immigration ; local adaptation ; Migration ; Mutation ; Population genetics ; Population growth ; Population growth rate ; Population migration ; Pseudomonas - virology ; Regression Analysis ; source-sink ; Viruses</subject><ispartof>Evolution, 2013-01, Vol.67 (1), p.10-17</ispartof><rights>Copyright © 2013 Society for the Study of Evolution</rights><rights>2012 The Author(s). © 2012 The Society for the Study of Evolution.</rights><rights>2012 The Author(s). Evolution© 2012 The Society for the Study of Evolution.</rights><rights>Copyright Society for the Study of Evolution Jan 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4082-e5bcae90422880ef6c99f8b65217069b603761cbe735a605c581ec2bc9e1f91d3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/23327698$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/23327698$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,1411,27901,27902,45550,45551,57992,58225</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23289558$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ching, Jane</creatorcontrib><creatorcontrib>Musheyev, Svetlana A.</creatorcontrib><creatorcontrib>Chowdhury, Dipabali</creatorcontrib><creatorcontrib>Kim, Julie A.</creatorcontrib><creatorcontrib>Choi, Yoon</creatorcontrib><creatorcontrib>Dennehy, John J.</creatorcontrib><title>MIGRATION ENHANCES ADAPTATION IN BACTERIOPHAGE POPULATIONS EVOLVING IN ECOLOGICAL SINKS</title><title>Evolution</title><addtitle>Evolution</addtitle><description>Migration between populations can be a major evolutionary force. However, some disagreement exists as to precisely how migration affects population adaptation. Some theories emphasize the inhibitory effects of gene flow between locally adapted populations, whereas others propose that migration can enhance adaptation. Migration has also been theorized to rescue sink populations from extinction. In our experiments, we serially passaged bacteriophage Φ6 host range mutants under sink conditions on a novel host while manipulating the source and number of migrants into these experimental populations. Migrants from two sources were used: mutant Φ6 phage able to infect a novel host (treatment) and wild-type Φ6 phage unable to infect a novel host (control). We used quadratic regressions to determine the relationship between the number of migrants per passage and the absolute fitnesses of experimental populations following 30 passages. Our results showed that migration from a control population had no effect on absolute fitnesses of our serially passaged populations following 30 passages. By contrast, the relationship between migrants per passage and absolute fitnesses for populations receiving migrants able to infect the novel host was best described by an upwardly concave curve. These results suggest that intermediate levels of migration can have favorable impacts on evolutionary adaptation.</description><subject>Adaptation, Biological - genetics</subject><subject>Bacteria</subject><subject>Bacteriophage phi 6 - genetics</subject><subject>Bacteriophage phi 6 - pathogenicity</subject><subject>Bacteriophages</subject><subject>Biological adaptation</subject><subject>Ecosystem</subject><subject>Emergence</subject><subject>Evolution</subject><subject>Evolutionary genetics</subject><subject>experimental evolution</subject><subject>Extinction</subject><subject>gene flow</subject><subject>Genetic Fitness</subject><subject>Genetic mutation</subject><subject>immigration</subject><subject>local adaptation</subject><subject>Migration</subject><subject>Mutation</subject><subject>Population genetics</subject><subject>Population growth</subject><subject>Population growth rate</subject><subject>Population migration</subject><subject>Pseudomonas - virology</subject><subject>Regression Analysis</subject><subject>source-sink</subject><subject>Viruses</subject><issn>0014-3820</issn><issn>1558-5646</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpdkUtPwkAUhSdGI_j4CZombty0zqPzWriotZYGbAkPdTdpy5BQQbCFCP_eqUVinM2dzPnumZt7ALAQdJA5d4WDKBU2ZS5zMETYgYi72NkegfZBOAZtCJFrE4FhC5xVVQEhlBTJU9DCBAtpwDZ4fY7CgTeKktgK4o4X-8HQ8h69_qh5i2LrwfNHwSBK-h0vDKx-0h_3frShFbwkvZcoDmsq8JNeEka-17OGUdwdXoCTaTqv9OW-noPxUzDyO_aesnMXCmxrmuWpltDFWAiopyyXcioyRjHikMmMQcIZyjPNCU0ZpDkVSOc4y6VGU4km5BzcNr6rcvm50dVaLWZVrufz9EMvN5VCmBNMXY6pQW_-ocVyU36Y6QzFuEAuJTV1vac22UJP1KqcLdJyp35XZoD7BviazfXuoCOo6mhUoeoEVJ2AqqNRP9GorTLbqm-m_6rpL6r1svzjTzBnsva3G31WrfX2oKflu2KccKpe41C9kQd3ILvmC_INZKCQdQ</recordid><startdate>201301</startdate><enddate>201301</enddate><creator>Ching, Jane</creator><creator>Musheyev, Svetlana A.</creator><creator>Chowdhury, Dipabali</creator><creator>Kim, Julie A.</creator><creator>Choi, Yoon</creator><creator>Dennehy, John J.</creator><general>Blackwell Publishing Inc</general><general>Wiley Subscription Services, Inc</general><general>Oxford University Press</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QR</scope><scope>7SN</scope><scope>7SS</scope><scope>7TK</scope><scope>7TM</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>201301</creationdate><title>MIGRATION ENHANCES ADAPTATION IN BACTERIOPHAGE POPULATIONS EVOLVING IN ECOLOGICAL SINKS</title><author>Ching, Jane ; Musheyev, Svetlana A. ; Chowdhury, Dipabali ; Kim, Julie A. ; Choi, Yoon ; Dennehy, John J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4082-e5bcae90422880ef6c99f8b65217069b603761cbe735a605c581ec2bc9e1f91d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Adaptation, Biological - genetics</topic><topic>Bacteria</topic><topic>Bacteriophage phi 6 - genetics</topic><topic>Bacteriophage phi 6 - pathogenicity</topic><topic>Bacteriophages</topic><topic>Biological adaptation</topic><topic>Ecosystem</topic><topic>Emergence</topic><topic>Evolution</topic><topic>Evolutionary genetics</topic><topic>experimental evolution</topic><topic>Extinction</topic><topic>gene flow</topic><topic>Genetic Fitness</topic><topic>Genetic mutation</topic><topic>immigration</topic><topic>local adaptation</topic><topic>Migration</topic><topic>Mutation</topic><topic>Population genetics</topic><topic>Population growth</topic><topic>Population growth rate</topic><topic>Population migration</topic><topic>Pseudomonas - virology</topic><topic>Regression Analysis</topic><topic>source-sink</topic><topic>Viruses</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ching, Jane</creatorcontrib><creatorcontrib>Musheyev, Svetlana A.</creatorcontrib><creatorcontrib>Chowdhury, Dipabali</creatorcontrib><creatorcontrib>Kim, Julie A.</creatorcontrib><creatorcontrib>Choi, Yoon</creatorcontrib><creatorcontrib>Dennehy, John J.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Evolution</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ching, Jane</au><au>Musheyev, Svetlana A.</au><au>Chowdhury, Dipabali</au><au>Kim, Julie A.</au><au>Choi, Yoon</au><au>Dennehy, John J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>MIGRATION ENHANCES ADAPTATION IN BACTERIOPHAGE POPULATIONS EVOLVING IN ECOLOGICAL SINKS</atitle><jtitle>Evolution</jtitle><addtitle>Evolution</addtitle><date>2013-01</date><risdate>2013</risdate><volume>67</volume><issue>1</issue><spage>10</spage><epage>17</epage><pages>10-17</pages><issn>0014-3820</issn><eissn>1558-5646</eissn><abstract>Migration between populations can be a major evolutionary force. However, some disagreement exists as to precisely how migration affects population adaptation. Some theories emphasize the inhibitory effects of gene flow between locally adapted populations, whereas others propose that migration can enhance adaptation. Migration has also been theorized to rescue sink populations from extinction. In our experiments, we serially passaged bacteriophage Φ6 host range mutants under sink conditions on a novel host while manipulating the source and number of migrants into these experimental populations. Migrants from two sources were used: mutant Φ6 phage able to infect a novel host (treatment) and wild-type Φ6 phage unable to infect a novel host (control). We used quadratic regressions to determine the relationship between the number of migrants per passage and the absolute fitnesses of experimental populations following 30 passages. Our results showed that migration from a control population had no effect on absolute fitnesses of our serially passaged populations following 30 passages. By contrast, the relationship between migrants per passage and absolute fitnesses for populations receiving migrants able to infect the novel host was best described by an upwardly concave curve. These results suggest that intermediate levels of migration can have favorable impacts on evolutionary adaptation.</abstract><cop>Malden, USA</cop><pub>Blackwell Publishing Inc</pub><pmid>23289558</pmid><doi>10.1111/j.1558-5646.2012.01742.x</doi><tpages>8</tpages></addata></record> |
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| source | Jstor Complete Legacy; Oxford University Press Journals All Titles (1996-Current); MEDLINE; Wiley Online Library Journals Frontfile Complete; EZB-FREE-00999 freely available EZB journals |
| subjects | Adaptation, Biological - genetics Bacteria Bacteriophage phi 6 - genetics Bacteriophage phi 6 - pathogenicity Bacteriophages Biological adaptation Ecosystem Emergence Evolution Evolutionary genetics experimental evolution Extinction gene flow Genetic Fitness Genetic mutation immigration local adaptation Migration Mutation Population genetics Population growth Population growth rate Population migration Pseudomonas - virology Regression Analysis source-sink Viruses |
| title | MIGRATION ENHANCES ADAPTATION IN BACTERIOPHAGE POPULATIONS EVOLVING IN ECOLOGICAL SINKS |
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