Parental ploidy strongly affects offspring fitness in heteroploid crosses among three cytotypes of autopolyploid Jacobaea carniolica (Asteraceae)
Reproductive interactions among cytotypes in their contact zones determine whether these cytotypes can co-exist and form stable contact zones or not. In autopolyploids, heteroploid cross-compatibilities might depend on parental ploidy, but tests of this hypothesis in autopolyploid systems with more...
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| creator | Sonnleitner, Michaela Weis, Birgit Flatscher, Ruth García, Pedro Escobar Suda, Jan Krejčíková, Jana Schneeweiss, Gerald M Winkler, Manuela Schönswetter, Peter Hülber, Karl |
| description | Reproductive interactions among cytotypes in their contact zones determine whether these cytotypes can co-exist and form stable contact zones or not. In autopolyploids, heteroploid cross-compatibilities might depend on parental ploidy, but tests of this hypothesis in autopolyploid systems with more than two ploidies are lacking. Here, we study Jacobaea carniolica, which comprises diploid, tetraploid, and hexaploid individuals regularly forming contact zones. Seeds obtained from in situ cross-pollinations within and among cytotypes were subjected to DNA flow cytometry and greenhouse germination experiments. Hybrid fitness and parental effects on hybrid fitness were tested with regression models comparing fitness parameters of early life stages. Irrespective of the direction of crosses, seed viability and seedling survival in diploid-polyploid crosses were substantially lower than in tetraploid-hexaploid crosses. In contrast, seedling growth traits indicated neither transgressive character expression nor any selection against hybrid offspring. Congruent with a model of genome dosage effects, these traits differed between reciprocal crosses, especially of diploids and tetraploids, where trait values resembled those of the maternal parent. The strong effect of parental ploidy on offspring fitness in heteroploid crosses may cause contact zones involving exclusively polyploid cytotypes to be less stable over longer terms than those involving diploids and polyploids. |
| doi_str_mv | 10.1371/journal.pone.0078959 |
| format | Article |
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In autopolyploids, heteroploid cross-compatibilities might depend on parental ploidy, but tests of this hypothesis in autopolyploid systems with more than two ploidies are lacking. Here, we study Jacobaea carniolica, which comprises diploid, tetraploid, and hexaploid individuals regularly forming contact zones. Seeds obtained from in situ cross-pollinations within and among cytotypes were subjected to DNA flow cytometry and greenhouse germination experiments. Hybrid fitness and parental effects on hybrid fitness were tested with regression models comparing fitness parameters of early life stages. Irrespective of the direction of crosses, seed viability and seedling survival in diploid-polyploid crosses were substantially lower than in tetraploid-hexaploid crosses. In contrast, seedling growth traits indicated neither transgressive character expression nor any selection against hybrid offspring. Congruent with a model of genome dosage effects, these traits differed between reciprocal crosses, especially of diploids and tetraploids, where trait values resembled those of the maternal parent. The strong effect of parental ploidy on offspring fitness in heteroploid crosses may cause contact zones involving exclusively polyploid cytotypes to be less stable over longer terms than those involving diploids and polyploids.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0078959</identifier><identifier>PMID: 24265735</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Abortion ; Analysis ; Asteraceae ; Asteraceae - genetics ; Asteraceae - physiology ; Castilleja ; Conservation biology ; Cytometry ; Dactylis glomerata ; Deoxyribonucleic acid ; Diploids ; DNA ; Embryos ; Endosperm - genetics ; Evolution ; Fertility ; Fitness ; Flow cytometry ; Genetic crosses ; Genetic Fitness ; Genomes ; Genomics ; Germination ; Greenhouse effect ; Hieracium ; Hybridization ; Hybridization, Genetic ; Infertility ; Landscape ecology ; Offspring ; Parenting ; Plant reproduction ; Plant sciences ; Ploidy ; Pollination - genetics ; Polyploidy ; Progeny ; Regression analysis ; Regression models ; Seedlings ; Seedlings - genetics ; Seeds ; Viability</subject><ispartof>PloS one, 2013-11, Vol.8 (11), p.e78959-e78959</ispartof><rights>COPYRIGHT 2013 Public Library of Science</rights><rights>2013 Sonnleitner et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://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. 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In autopolyploids, heteroploid cross-compatibilities might depend on parental ploidy, but tests of this hypothesis in autopolyploid systems with more than two ploidies are lacking. Here, we study Jacobaea carniolica, which comprises diploid, tetraploid, and hexaploid individuals regularly forming contact zones. Seeds obtained from in situ cross-pollinations within and among cytotypes were subjected to DNA flow cytometry and greenhouse germination experiments. Hybrid fitness and parental effects on hybrid fitness were tested with regression models comparing fitness parameters of early life stages. Irrespective of the direction of crosses, seed viability and seedling survival in diploid-polyploid crosses were substantially lower than in tetraploid-hexaploid crosses. In contrast, seedling growth traits indicated neither transgressive character expression nor any selection against hybrid offspring. 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The strong effect of parental ploidy on offspring fitness in heteroploid crosses may cause contact zones involving exclusively polyploid cytotypes to be less stable over longer terms than those involving diploids and polyploids.</description><subject>Abortion</subject><subject>Analysis</subject><subject>Asteraceae</subject><subject>Asteraceae - genetics</subject><subject>Asteraceae - physiology</subject><subject>Castilleja</subject><subject>Conservation biology</subject><subject>Cytometry</subject><subject>Dactylis glomerata</subject><subject>Deoxyribonucleic acid</subject><subject>Diploids</subject><subject>DNA</subject><subject>Embryos</subject><subject>Endosperm - genetics</subject><subject>Evolution</subject><subject>Fertility</subject><subject>Fitness</subject><subject>Flow cytometry</subject><subject>Genetic crosses</subject><subject>Genetic Fitness</subject><subject>Genomes</subject><subject>Genomics</subject><subject>Germination</subject><subject>Greenhouse effect</subject><subject>Hieracium</subject><subject>Hybridization</subject><subject>Hybridization, Genetic</subject><subject>Infertility</subject><subject>Landscape ecology</subject><subject>Offspring</subject><subject>Parenting</subject><subject>Plant reproduction</subject><subject>Plant sciences</subject><subject>Ploidy</subject><subject>Pollination - genetics</subject><subject>Polyploidy</subject><subject>Progeny</subject><subject>Regression analysis</subject><subject>Regression models</subject><subject>Seedlings</subject><subject>Seedlings - genetics</subject><subject>Seeds</subject><subject>Viability</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><sourceid>DOA</sourceid><recordid>eNqNk12LEzEUhgdR3HX1H4gGBNm9aE0yk5nJjVAWPyoLK37dhjPpSZslndQkI_Zn-I9NP3ZpZS8kFxMyz_vm5E1OUTxndMzKhr258UPowY1XvscxpU0rhXxQnDJZ8lHNafnwYH5SPInxhlJRtnX9uDjhFa9FU4rT4s9nCNgncGTlvJ2tSUzB93O3JmAM6hSJNyaugu3nxNjUY4zE9mSBCYPfSogOPkaMBJZZSNIiIBK9Tj6tV7iRExiSX3m33uGfQPsOEIiG0FvvrAZyPonZDzQCXjwtHhlwEZ_tv2fF9_fvvl1-HF1df5heTq5GupY8jeoGyspIkABGNi3OdCc7rrsGNStNJzRD3SKX3cwwTkG0lai6RldgGmFmRpdnxcudby4rqn2aUbFKUC5qQVkmpjti5uFG5QyWENbKg1XbBR_mCkKy2qGqGsmqltc630zFhe64NLrWrGZaA5d19nq7323olrnYnHkAd2R6_Ke3CzX3v1TZ8oZxkQ3O9wbB_xwwJrW0UaNz0KMfNnXXrG0EozSjr_5B7z_dnppDPoDtjc_76o2pmlRNW1Iqy43X-B4qjxkurc5Pz9i8fiS4OBJkJuHvNIchRjX9-uX_2esfx-zrA3aB4NIiejck6_t4DFY7cPsuA5q7kBlVm865TUNtOkftOyfLXhxe0J3otlXKvx2sF5U</recordid><startdate>20131112</startdate><enddate>20131112</enddate><creator>Sonnleitner, Michaela</creator><creator>Weis, Birgit</creator><creator>Flatscher, Ruth</creator><creator>García, Pedro Escobar</creator><creator>Suda, Jan</creator><creator>Krejčíková, Jana</creator><creator>Schneeweiss, Gerald M</creator><creator>Winkler, Manuela</creator><creator>Schönswetter, Peter</creator><creator>Hülber, Karl</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>AEUYN</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>20131112</creationdate><title>Parental ploidy strongly affects offspring fitness in heteroploid crosses among three cytotypes of autopolyploid Jacobaea carniolica (Asteraceae)</title><author>Sonnleitner, Michaela ; Weis, Birgit ; Flatscher, Ruth ; García, Pedro Escobar ; Suda, Jan ; Krejčíková, Jana ; Schneeweiss, Gerald M ; Winkler, Manuela ; Schönswetter, Peter ; Hülber, Karl</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-67a34f9a9aaf978edcb9b2cb7ec13fb5c1ec8e29bdf120a58454b7c4af75fdfc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Abortion</topic><topic>Analysis</topic><topic>Asteraceae</topic><topic>Asteraceae - 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In autopolyploids, heteroploid cross-compatibilities might depend on parental ploidy, but tests of this hypothesis in autopolyploid systems with more than two ploidies are lacking. Here, we study Jacobaea carniolica, which comprises diploid, tetraploid, and hexaploid individuals regularly forming contact zones. Seeds obtained from in situ cross-pollinations within and among cytotypes were subjected to DNA flow cytometry and greenhouse germination experiments. Hybrid fitness and parental effects on hybrid fitness were tested with regression models comparing fitness parameters of early life stages. Irrespective of the direction of crosses, seed viability and seedling survival in diploid-polyploid crosses were substantially lower than in tetraploid-hexaploid crosses. In contrast, seedling growth traits indicated neither transgressive character expression nor any selection against hybrid offspring. Congruent with a model of genome dosage effects, these traits differed between reciprocal crosses, especially of diploids and tetraploids, where trait values resembled those of the maternal parent. The strong effect of parental ploidy on offspring fitness in heteroploid crosses may cause contact zones involving exclusively polyploid cytotypes to be less stable over longer terms than those involving diploids and polyploids.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24265735</pmid><doi>10.1371/journal.pone.0078959</doi><tpages>e78959</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 1932-6203 |
| ispartof | PloS one, 2013-11, Vol.8 (11), p.e78959-e78959 |
| issn | 1932-6203 1932-6203 |
| language | eng |
| recordid | cdi_plos_journals_1450256501 |
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| subjects | Abortion Analysis Asteraceae Asteraceae - genetics Asteraceae - physiology Castilleja Conservation biology Cytometry Dactylis glomerata Deoxyribonucleic acid Diploids DNA Embryos Endosperm - genetics Evolution Fertility Fitness Flow cytometry Genetic crosses Genetic Fitness Genomes Genomics Germination Greenhouse effect Hieracium Hybridization Hybridization, Genetic Infertility Landscape ecology Offspring Parenting Plant reproduction Plant sciences Ploidy Pollination - genetics Polyploidy Progeny Regression analysis Regression models Seedlings Seedlings - genetics Seeds Viability |
| title | Parental ploidy strongly affects offspring fitness in heteroploid crosses among three cytotypes of autopolyploid Jacobaea carniolica (Asteraceae) |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-09T09%3A54%3A13IST&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=Parental%20ploidy%20strongly%20affects%20offspring%20fitness%20in%20heteroploid%20crosses%20among%20three%20cytotypes%20of%20autopolyploid%20Jacobaea%20carniolica%20(Asteraceae)&rft.jtitle=PloS%20one&rft.au=Sonnleitner,%20Michaela&rft.date=2013-11-12&rft.volume=8&rft.issue=11&rft.spage=e78959&rft.epage=e78959&rft.pages=e78959-e78959&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0078959&rft_dat=%3Cgale_plos_%3EA478300930%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=1450256501&rft_id=info:pmid/24265735&rft_galeid=A478300930&rft_doaj_id=oai_doaj_org_article_47914826c371425cb29fc6c161cca296&rfr_iscdi=true |