The Relationship between Mating System and Genetic Diversity in Diploid Sexual Populations of Cyrtomium falcatum in Japan
The impact of variation in mating system on genetic diversity is a well-debated topic in evolutionary biology. The diploid sexual race of Cyrtomium falcatum (Japanese holly fern) shows mating system variation, i.e., it displays two different types of sexual expression (gametangia formation) in gamet...
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| description | The impact of variation in mating system on genetic diversity is a well-debated topic in evolutionary biology. The diploid sexual race of Cyrtomium falcatum (Japanese holly fern) shows mating system variation, i.e., it displays two different types of sexual expression (gametangia formation) in gametophytes: mixed (M) type and separate (S) type. We examined whether there is variation in the selfing rate among populations of this species, and evaluated the relationship between mating system, genetic diversity and effective population size using microsatellites. In this study, we developed eight new microsatellite markers and evaluated genetic diversity and structure of seven populations (four M-type and three S-type). Past effective population sizes (Ne) were inferred using Approximate Bayesian computation (ABC). The values of fixation index (FIS), allelic richness (AR) and gene diversity (h) differed significantly between the M-type (FIS: 0.626, AR: 1.999, h: 0.152) and the S-type (FIS: 0.208, AR: 2.718, h: 0.367) populations (when admixed individuals were removed from two populations). Although evidence of past bottleneck events was detected in all populations by ABC, the current Ne of the M-type populations was about a third of that of the S-type populations. These results suggest that the M-type populations have experienced more frequent bottlenecks, which could be related to their higher colonization ability via gametophytic selfing. Although high population differentiation among populations was detected (FST = 0.581, F'ST = 0.739), there was no clear genetic differentiation between the M- and S-types. Instead, significant isolation by distance was detected among all populations. These results suggest that mating system variation in this species is generated by the selection for single spore colonization during local extinction and recolonization events and there is no genetic structure due to mating system. |
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The diploid sexual race of Cyrtomium falcatum (Japanese holly fern) shows mating system variation, i.e., it displays two different types of sexual expression (gametangia formation) in gametophytes: mixed (M) type and separate (S) type. We examined whether there is variation in the selfing rate among populations of this species, and evaluated the relationship between mating system, genetic diversity and effective population size using microsatellites. In this study, we developed eight new microsatellite markers and evaluated genetic diversity and structure of seven populations (four M-type and three S-type). Past effective population sizes (Ne) were inferred using Approximate Bayesian computation (ABC). The values of fixation index (FIS), allelic richness (AR) and gene diversity (h) differed significantly between the M-type (FIS: 0.626, AR: 1.999, h: 0.152) and the S-type (FIS: 0.208, AR: 2.718, h: 0.367) populations (when admixed individuals were removed from two populations). Although evidence of past bottleneck events was detected in all populations by ABC, the current Ne of the M-type populations was about a third of that of the S-type populations. These results suggest that the M-type populations have experienced more frequent bottlenecks, which could be related to their higher colonization ability via gametophytic selfing. Although high population differentiation among populations was detected (FST = 0.581, F'ST = 0.739), there was no clear genetic differentiation between the M- and S-types. Instead, significant isolation by distance was detected among all populations. These results suggest that mating system variation in this species is generated by the selection for single spore colonization during local extinction and recolonization events and there is no genetic structure due to mating system.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0163683</identifier><identifier>PMID: 27706257</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Advantages ; Animal reproduction ; Bayes Theorem ; Bayesian analysis ; Biodiversity ; Biological evolution ; Biology and Life Sciences ; Colonization ; Cyrtomium falcatum ; Differentiation ; Diploidy ; DNA, Plant - analysis ; Dryopteridaceae - physiology ; Evolution ; Evolutionary biology ; Ferns ; Flowers & plants ; Gametangia ; Gametophytes ; Genetic diversity ; Genetic markers ; Genetic structure ; Genetic Variation ; Germ Cells, Plant - physiology ; Islands ; Japan ; Local extinction ; Mating ; Microsatellite Repeats ; Microsatellites ; Morphology ; Museums ; People and Places ; Plant populations ; Plant sciences ; Population Density ; Population differentiation ; Population genetics ; Population number ; Populations ; Recolonization ; Research and Analysis Methods ; Seeds ; Species diversity ; Species extinction</subject><ispartof>PloS one, 2016-10, Vol.11 (10), p.e0163683-e0163683</ispartof><rights>COPYRIGHT 2016 Public Library of Science</rights><rights>2016 Imai et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2016 Imai et al 2016 Imai et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c835t-f8deeaa49e83ad7cfb10e83c9353dbdcf39f458e85555a331bade5adb43548dd3</citedby><cites>FETCH-LOGICAL-c835t-f8deeaa49e83ad7cfb10e83c9353dbdcf39f458e85555a331bade5adb43548dd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5051678/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5051678/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793,79600,79601</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27706257$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Chiang, Tzen-Yuh</contributor><creatorcontrib>Imai, Ryosuke</creatorcontrib><creatorcontrib>Tsuda, Yoshiaki</creatorcontrib><creatorcontrib>Matsumoto, Sadamu</creatorcontrib><creatorcontrib>Ebihara, Atsushi</creatorcontrib><creatorcontrib>Watano, Yasuyuki</creatorcontrib><title>The Relationship between Mating System and Genetic Diversity in Diploid Sexual Populations of Cyrtomium falcatum in Japan</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>The impact of variation in mating system on genetic diversity is a well-debated topic in evolutionary biology. The diploid sexual race of Cyrtomium falcatum (Japanese holly fern) shows mating system variation, i.e., it displays two different types of sexual expression (gametangia formation) in gametophytes: mixed (M) type and separate (S) type. We examined whether there is variation in the selfing rate among populations of this species, and evaluated the relationship between mating system, genetic diversity and effective population size using microsatellites. In this study, we developed eight new microsatellite markers and evaluated genetic diversity and structure of seven populations (four M-type and three S-type). Past effective population sizes (Ne) were inferred using Approximate Bayesian computation (ABC). The values of fixation index (FIS), allelic richness (AR) and gene diversity (h) differed significantly between the M-type (FIS: 0.626, AR: 1.999, h: 0.152) and the S-type (FIS: 0.208, AR: 2.718, h: 0.367) populations (when admixed individuals were removed from two populations). Although evidence of past bottleneck events was detected in all populations by ABC, the current Ne of the M-type populations was about a third of that of the S-type populations. These results suggest that the M-type populations have experienced more frequent bottlenecks, which could be related to their higher colonization ability via gametophytic selfing. Although high population differentiation among populations was detected (FST = 0.581, F'ST = 0.739), there was no clear genetic differentiation between the M- and S-types. Instead, significant isolation by distance was detected among all populations. These results suggest that mating system variation in this species is generated by the selection for single spore colonization during local extinction and recolonization events and there is no genetic structure due to mating system.</description><subject>Advantages</subject><subject>Animal reproduction</subject><subject>Bayes Theorem</subject><subject>Bayesian analysis</subject><subject>Biodiversity</subject><subject>Biological evolution</subject><subject>Biology and Life Sciences</subject><subject>Colonization</subject><subject>Cyrtomium falcatum</subject><subject>Differentiation</subject><subject>Diploidy</subject><subject>DNA, Plant - analysis</subject><subject>Dryopteridaceae - physiology</subject><subject>Evolution</subject><subject>Evolutionary biology</subject><subject>Ferns</subject><subject>Flowers & plants</subject><subject>Gametangia</subject><subject>Gametophytes</subject><subject>Genetic diversity</subject><subject>Genetic markers</subject><subject>Genetic structure</subject><subject>Genetic Variation</subject><subject>Germ Cells, Plant - physiology</subject><subject>Islands</subject><subject>Japan</subject><subject>Local extinction</subject><subject>Mating</subject><subject>Microsatellite Repeats</subject><subject>Microsatellites</subject><subject>Morphology</subject><subject>Museums</subject><subject>People and Places</subject><subject>Plant populations</subject><subject>Plant sciences</subject><subject>Population Density</subject><subject>Population differentiation</subject><subject>Population genetics</subject><subject>Population number</subject><subject>Populations</subject><subject>Recolonization</subject><subject>Research and Analysis Methods</subject><subject>Seeds</subject><subject>Species diversity</subject><subject>Species extinction</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>DOA</sourceid><recordid>eNqNk1Fv0zAQxyMEYmPwDRBYQkLw0BLHceK8TJoKjKKhoXXwajn2pXWV2CF2xvrtcdtsatAeFj_4fPnd3-ezL4pe43iKSY4_rW3fGVFPW2tgGuOMZIw8iY5xQZJJlsTk6YF9FL1wbh3HlLAsex4dJXkeZwnNj6PN9QrQFdTCa2vcSreoBP8XwKAfwWWWaLFxHhokjELnYMBriT7rG-ic9hukTVi0tdUKLeC2FzX6adt-EEO2QrNN522j-wZVopbCByPEfBetMC-jZ8Hn4NUwn0S_vn65nn2bXFyez2dnFxPJCPWTiikAIdICGBEql1WJ42DKglCiSiUrUlQpZcBo-AQhuBQKqFBlSmjKlCIn0du9bsjT8aFqjmOWZJgxlrNAzPeEsmLN2043ottwKzTfOWy35KILB6-BM0KKksaKSIA0UQmTeaVgO9GUMJwHrdNht75sQEkwvhP1SHT8x-gVX9obTmOKs10yHwaBzv7pwXneaCehroUB22_zJjlJaU6zx6CU5AxTGtB3_6EPF2KgliKcVZvKhhTlVpSfpXkAMSmKQE0foMJQ0GgZXmOlg38U8HEUEBgPt34peuf4fHH1ePby95h9f8CuQNR-5Wzd717fGEz3oOyscx1U9_eBY75tprtq8G0z8aGZQtibw7u8D7rrHvIPcQgbVw</recordid><startdate>20161005</startdate><enddate>20161005</enddate><creator>Imai, Ryosuke</creator><creator>Tsuda, Yoshiaki</creator><creator>Matsumoto, Sadamu</creator><creator>Ebihara, Atsushi</creator><creator>Watano, Yasuyuki</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>IOV</scope><scope>ISR</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>20161005</creationdate><title>The Relationship between Mating System and Genetic Diversity in Diploid Sexual Populations of Cyrtomium falcatum in Japan</title><author>Imai, Ryosuke ; Tsuda, Yoshiaki ; Matsumoto, Sadamu ; Ebihara, Atsushi ; Watano, Yasuyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c835t-f8deeaa49e83ad7cfb10e83c9353dbdcf39f458e85555a331bade5adb43548dd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Advantages</topic><topic>Animal reproduction</topic><topic>Bayes Theorem</topic><topic>Bayesian analysis</topic><topic>Biodiversity</topic><topic>Biological evolution</topic><topic>Biology and Life Sciences</topic><topic>Colonization</topic><topic>Cyrtomium falcatum</topic><topic>Differentiation</topic><topic>Diploidy</topic><topic>DNA, Plant - 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Imai, Ryosuke</au><au>Tsuda, Yoshiaki</au><au>Matsumoto, Sadamu</au><au>Ebihara, Atsushi</au><au>Watano, Yasuyuki</au><au>Chiang, Tzen-Yuh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Relationship between Mating System and Genetic Diversity in Diploid Sexual Populations of Cyrtomium falcatum in Japan</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2016-10-05</date><risdate>2016</risdate><volume>11</volume><issue>10</issue><spage>e0163683</spage><epage>e0163683</epage><pages>e0163683-e0163683</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>The impact of variation in mating system on genetic diversity is a well-debated topic in evolutionary biology. The diploid sexual race of Cyrtomium falcatum (Japanese holly fern) shows mating system variation, i.e., it displays two different types of sexual expression (gametangia formation) in gametophytes: mixed (M) type and separate (S) type. We examined whether there is variation in the selfing rate among populations of this species, and evaluated the relationship between mating system, genetic diversity and effective population size using microsatellites. In this study, we developed eight new microsatellite markers and evaluated genetic diversity and structure of seven populations (four M-type and three S-type). Past effective population sizes (Ne) were inferred using Approximate Bayesian computation (ABC). The values of fixation index (FIS), allelic richness (AR) and gene diversity (h) differed significantly between the M-type (FIS: 0.626, AR: 1.999, h: 0.152) and the S-type (FIS: 0.208, AR: 2.718, h: 0.367) populations (when admixed individuals were removed from two populations). Although evidence of past bottleneck events was detected in all populations by ABC, the current Ne of the M-type populations was about a third of that of the S-type populations. These results suggest that the M-type populations have experienced more frequent bottlenecks, which could be related to their higher colonization ability via gametophytic selfing. Although high population differentiation among populations was detected (FST = 0.581, F'ST = 0.739), there was no clear genetic differentiation between the M- and S-types. Instead, significant isolation by distance was detected among all populations. These results suggest that mating system variation in this species is generated by the selection for single spore colonization during local extinction and recolonization events and there is no genetic structure due to mating system.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>27706257</pmid><doi>10.1371/journal.pone.0163683</doi><tpages>e0163683</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Advantages Animal reproduction Bayes Theorem Bayesian analysis Biodiversity Biological evolution Biology and Life Sciences Colonization Cyrtomium falcatum Differentiation Diploidy DNA, Plant - analysis Dryopteridaceae - physiology Evolution Evolutionary biology Ferns Flowers & plants Gametangia Gametophytes Genetic diversity Genetic markers Genetic structure Genetic Variation Germ Cells, Plant - physiology Islands Japan Local extinction Mating Microsatellite Repeats Microsatellites Morphology Museums People and Places Plant populations Plant sciences Population Density Population differentiation Population genetics Population number Populations Recolonization Research and Analysis Methods Seeds Species diversity Species extinction |
| title | The Relationship between Mating System and Genetic Diversity in Diploid Sexual Populations of Cyrtomium falcatum in Japan |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-01T21%3A05%3A08IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20Relationship%20between%20Mating%20System%20and%20Genetic%20Diversity%20in%20Diploid%20Sexual%20Populations%20of%20Cyrtomium%20falcatum%20in%20Japan&rft.jtitle=PloS%20one&rft.au=Imai,%20Ryosuke&rft.date=2016-10-05&rft.volume=11&rft.issue=10&rft.spage=e0163683&rft.epage=e0163683&rft.pages=e0163683-e0163683&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0163683&rft_dat=%3Cgale_plos_%3EA471821399%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1826188878&rft_id=info:pmid/27706257&rft_galeid=A471821399&rft_doaj_id=oai_doaj_org_article_8339b50d3cee42d28c7fde28c7543817&rfr_iscdi=true |