{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T06:59:42Z","timestamp":1791442782842,"version":"4.3.3"},"reference-count":93,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2020,2,17]],"date-time":"2020-02-17T00:00:00Z","timestamp":1581897600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"AFR","award":["PHD2011-2\/BM"],"award-info":[{"award-number":["PHD2011-2\/BM"]}]},{"name":"Luxembourg National Research Fund"}],"content-domain":{"domain":["bsapubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["American J of Botany"],"published-print":{"date-parts":[[2020,3]]},"abstract":"<jats:sec><jats:title>Premise<\/jats:title><jats:p>Different cytotypes of a species may differ in their morphology, phenology, physiology, and their tolerance of extreme environments. We studied the ecological niches of two subspecies of <jats:italic>Saxifraga rosacea<\/jats:italic> with different ploidy levels: the hexaploid Central European endemic subspecies <jats:italic>sponhemica<\/jats:italic> and the more widely distributed octoploid subspecies <jats:italic>rosacea<\/jats:italic>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>For both cytotypes, we recorded local environmental conditions and mean plant trait values in populations across their areas of distribution, analyzed their distributions by niche modeling, studied their performance at two transplant sites with contrasting conditions, and experimentally tested their cold resistance.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mean annual temperature was higher in hexaploid than in octoploid populations and experiments indicated that frost tolerance of the hexaploid is lower than that of the octoploid. Reproduction of octoploids from Central Europe was higher than that of hexaploids at a transplant site in subarctic Iceland, whereas the opposite was true in temperate Luxembourg, indicating adaptation of the octoploids to colder conditions. Temperature variables were also most important in niche models predicting the distribution of the two cytotypes. Genetic differences in survival among populations were larger for the octoploids than for the hexaploids in both field gardens, suggesting that greater genetic variability may contribute to the octoploid's larger distributional range.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Our results support the hypotheses that different cytotypes may have different niches leading to spatial segregation, and that higher ploidy levels can result in a broader ecological niche and greater tolerance of more extreme conditions.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ajb2.1431","type":"journal-article","created":{"date-parts":[[2020,2,17]],"date-time":"2020-02-17T23:24:10Z","timestamp":1581981850000},"page":"423-435","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Ecological niche differences between two polyploid cytotypes of <i>Saxifraga rosacea<\/i>"],"prefix":"10.1002","volume":"107","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3990-4982","authenticated-orcid":false,"given":"Lucile","family":"Decanter","sequence":"first","affiliation":[{"name":"Fondation Faune\u2010Flore c\/o Mus\u00e9e national d'histoire naturelle 25 rue M\u00fcnster L\u20102160 Luxembourg Luxembourg"},{"name":"Population Biology and Evolution Mus\u00e9e national d'histoire naturelle 25 rue Munster L\u20102160 Luxembourg Luxembourg"},{"name":"Unit of Plant Ecology Department of Biology University of Marburg Karl\u2010von\u2010Frisch\u2010Stra\u00dfe 8 D\u201035043 Marburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guy","family":"Colling","sequence":"additional","affiliation":[{"name":"Population Biology and Evolution Mus\u00e9e national d'histoire naturelle 25 rue Munster L\u20102160 Luxembourg Luxembourg"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nora","family":"Elvinger","sequence":"additional","affiliation":[{"name":"Population Biology and Evolution Mus\u00e9e national d'histoire naturelle 25 rue Munster L\u20102160 Luxembourg Luxembourg"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Starri","family":"Hei\u00f0marsson","sequence":"additional","affiliation":[{"name":"The Icelandic Institute of Natural History Borgir vid Nordurslod 600 Akureyri Iceland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Diethart","family":"Matthies","sequence":"additional","affiliation":[{"name":"Unit of Plant Ecology Department of Biology University of Marburg Karl\u2010von\u2010Frisch\u2010Stra\u00dfe 8 D\u201035043 Marburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,2,17]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.3732\/ajb.91.11.1783"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajb2.1046"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1095-8312.2004.00337.x"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1466-8238.2011.00698.x"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1558-5646.2007.00010.x"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0116992"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1095-8339.1987.tb01857.x"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00606-009-0231-3"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8137.2007.02084.x"},{"key":"e_1_2_9_11_1","first-page":"9","volume-title":"IOPB Chromosome Data 16","author":"Dr\u00e1bkov\u00e1 L.","year":"2000"},{"key":"e_1_2_9_12_1","first-page":"569","article-title":"The ecological performance of tetra\u2010, penta\u2010 and hexaploid geophyte Allium oleraceum in reciprocal transplant experiment may explain the occurrence of multiple\u2010cytotype populations","volume":"10","author":"Duchoslav M.","year":"2017","journal-title":"Journal of Plant Ecology"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-185X.1967.tb01418.x"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/joc.5086"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF02803074"},{"key":"e_1_2_9_16_1","volume-title":"Gap Light Analyzer (GLA): Imaging Software to Extract Canopy Structure and Gap Light Transmission Indices from True Color Fisheye\u2010photographs, Version 2.0","author":"Frazer G.W.","year":"1999"},{"key":"e_1_2_9_17_1","unstructured":"GBIF.org.2019.Global Biodiversity Information Facility. Website:https:\/\/www.gbif.org. Last accessed August 7 2019."},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/ele.12259"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.3732\/ajb.1200275"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.7312\/gran92318"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1111\/nph.13881"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00035-018-0209-2"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2745.2000.00481.x"},{"key":"e_1_2_9_24_1","unstructured":"IBM Corp. Released2017.IBM SPSS Statistics for Windows Version 25.0.Armonk NY:IBM Corp."},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1095-8339.2007.00591.x"},{"key":"e_1_2_9_26_1","unstructured":"Jalas J. J.Suominen R.Lampinen andR.Kurtto(eds.).1999.Atlas Florae Europaeae: Distribution of vascular plants in Europe. Vol. 12. Resedaceae to Platanaceae. The committee for mapping the flora of Europe and Societas Biologica Fennica Vanamo. Helsinki."},{"key":"e_1_2_9_27_1","doi-asserted-by":"publisher","DOI":"10.1093\/aob\/mcp016"},{"key":"e_1_2_9_28_1","doi-asserted-by":"publisher","DOI":"10.1111\/mec.13110"},{"key":"e_1_2_9_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tplants.2017.09.011"},{"key":"e_1_2_9_30_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1153585"},{"key":"e_1_2_9_31_1","doi-asserted-by":"publisher","DOI":"10.2307\/1218997"},{"key":"e_1_2_9_32_1","doi-asserted-by":"publisher","DOI":"10.1093\/oso\/9780195138597.001.0001"},{"key":"e_1_2_9_33_1","doi-asserted-by":"publisher","DOI":"10.1002\/j.1537-2197.1996.tb13869.x"},{"key":"e_1_2_9_34_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1095-8339.2010.01073.x"},{"key":"e_1_2_9_35_1","unstructured":"Lind\u00e9n L.2002.Measuring cold hardiness in woody plants. PhD thesis University of Helsinki Helsinki."},{"key":"e_1_2_9_36_1","volume-title":"Plant chromosomes","author":"L\u00f6ve \u00c1.","year":"1974"},{"key":"e_1_2_9_37_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2699.2006.01562.x"},{"key":"e_1_2_9_38_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8137.2009.02997.x"},{"key":"e_1_2_9_39_1","first-page":"1047","article-title":"Unmasking cryptic biodiversity in polyploids: origin and diversification of Aster amellus aggregate","volume":"122","author":"Mairal M.","year":"2018","journal-title":"Annals of Botany"},{"key":"e_1_2_9_40_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8137.2011.03988.x"},{"key":"e_1_2_9_41_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2745.2009.01543.x"},{"key":"e_1_2_9_42_1","doi-asserted-by":"publisher","DOI":"10.1111\/evo.12065"},{"key":"e_1_2_9_43_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.264.5157.421"},{"key":"e_1_2_9_44_1","doi-asserted-by":"publisher","DOI":"10.3732\/ajb.1400296"},{"key":"e_1_2_9_45_1","doi-asserted-by":"publisher","DOI":"10.3732\/ajb.1100466"},{"key":"e_1_2_9_46_1","doi-asserted-by":"publisher","DOI":"10.1111\/evo.13288"},{"key":"e_1_2_9_47_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0168-1923(97)00027-0"},{"key":"e_1_2_9_48_1","doi-asserted-by":"publisher","DOI":"10.1093\/aob\/mcs120"},{"key":"e_1_2_9_49_1","doi-asserted-by":"publisher","DOI":"10.1111\/plb.12605"},{"key":"e_1_2_9_50_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.2006.0030-1299.15286.x"},{"key":"e_1_2_9_51_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10265-005-0239-x"},{"key":"e_1_2_9_52_1","doi-asserted-by":"publisher","DOI":"10.1038\/hdy.2012.78"},{"key":"e_1_2_9_53_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.0014-3820.2005.tb01062.x"},{"key":"e_1_2_9_54_1","volume-title":"Pflanzensoziologische Exkursionsflora","author":"Oberdorfer E.","year":"2001"},{"key":"e_1_2_9_55_1","unstructured":"Oksanen J. F.G.Blanchet M.Friendly R.Kindt R.Legendre D.McGlinn P.R.Minchin et\u00a0al.2019.vegan: Community Ecology Package. R package version 2.5\u20104. Website:https:\/\/CRAN.R-project.org\/package=vegan."},{"key":"e_1_2_9_56_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-0258(19980430)17:8<857::AID-SIM777>3.0.CO;2-E"},{"key":"e_1_2_9_57_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.genet.34.1.401"},{"key":"e_1_2_9_58_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ecolmodel.2005.03.026"},{"key":"e_1_2_9_59_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF02982196"},{"key":"e_1_2_9_60_1","unstructured":"QGIS Development Team.2019.QGIS Geographic Information System. Open Source Geospatial Foundation Project.\u00a0Website:http:\/\/qgis.osgeo.org."},{"key":"e_1_2_9_61_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00442-008-1156-1"},{"key":"e_1_2_9_62_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1016631108"},{"key":"e_1_2_9_63_1","doi-asserted-by":"publisher","DOI":"10.1111\/nph.13191"},{"key":"e_1_2_9_64_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41559-018-0787-9"},{"key":"e_1_2_9_65_1","doi-asserted-by":"publisher","DOI":"10.3732\/ajb.1100018"},{"key":"e_1_2_9_66_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1472-4642.2000.00083.x"},{"key":"e_1_2_9_67_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1137729"},{"key":"e_1_2_9_68_1","first-page":"513","article-title":"Allium oleraceum in Slovakia: cytotype distribution and ecology","volume":"83","author":"\u0160af\u00e1\u0159ov\u00e1 L.","year":"2011","journal-title":"Preslia"},{"key":"e_1_2_9_69_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-294X.1999.00562.x"},{"key":"e_1_2_9_70_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.ecolsys.110308.120317"},{"key":"e_1_2_9_71_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0169-5347(99)01638-9"},{"key":"e_1_2_9_72_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.arplant.043008.092039"},{"key":"e_1_2_9_73_1","doi-asserted-by":"publisher","DOI":"10.1080\/07352689309701903"},{"key":"e_1_2_9_74_1","doi-asserted-by":"publisher","DOI":"10.2307\/25065732"},{"key":"e_1_2_9_75_1","doi-asserted-by":"publisher","DOI":"10.3732\/ajb.1400178"},{"key":"e_1_2_9_76_1","doi-asserted-by":"publisher","DOI":"10.1093\/aob\/mcq192"},{"key":"e_1_2_9_77_1","first-page":"1","article-title":"Polyploidy and the distribution of the arctic\u2010alpine flora: new evidence and a new approach","volume":"94","author":"Stebbins G. L.","year":"1984","journal-title":"Botanica Helvetica"},{"key":"e_1_2_9_78_1","doi-asserted-by":"publisher","DOI":"10.1002\/ecs2.1460"},{"key":"e_1_2_9_79_1","doi-asserted-by":"publisher","DOI":"10.1093\/aob\/mcr277"},{"key":"e_1_2_9_80_1","doi-asserted-by":"publisher","DOI":"10.1111\/jbi.12085"},{"key":"e_1_2_9_81_1","doi-asserted-by":"publisher","DOI":"10.3732\/ajb.1400184"},{"key":"e_1_2_9_82_1","first-page":"81","article-title":"Bemerkungen zu einer \u00dcbersichtskarte vermutlicher Glazialreliktpflanzen Deutschlands","volume":"8","author":"Thorn K.","year":"1960","journal-title":"Mitteilungen der Floristisch\u2010Soziologischen Arbeitsgemeinschaft"},{"key":"e_1_2_9_83_1","doi-asserted-by":"publisher","DOI":"10.12705\/646.4"},{"key":"e_1_2_9_84_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00985326"},{"key":"e_1_2_9_85_1","doi-asserted-by":"publisher","DOI":"10.3732\/ajb.1600130"},{"key":"e_1_2_9_86_1","doi-asserted-by":"publisher","DOI":"10.3732\/ajb.1400432"},{"key":"e_1_2_9_87_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00606-014-1070-4"},{"key":"e_1_2_9_88_1","volume-title":"Arealkunde: Floristisch\u2010historische Geobotanik: Einf\u00fchrung in die Phytologie III\/2","author":"Walter H.","year":"1970"},{"key":"e_1_2_9_89_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1558-5646.2008.00482.x"},{"key":"e_1_2_9_90_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0587.2009.06142.x"},{"key":"e_1_2_9_91_1","doi-asserted-by":"publisher","DOI":"10.2307\/2256538"},{"key":"e_1_2_9_92_1","volume-title":"Saxifrages of Europe","author":"Webb D. A.","year":"1989"},{"key":"e_1_2_9_93_1","doi-asserted-by":"publisher","DOI":"10.1159\/000351727"},{"key":"e_1_2_9_94_1","volume-title":"Biostatistical analysis","author":"Zar J. H.","year":"2010"}],"container-title":["American Journal of Botany"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fajb2.1431","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ajb2.1431","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/ajb2.1431","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/bsapubs.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ajb2.1431","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T21:59:59Z","timestamp":1759874399000},"score":1,"resource":{"primary":{"URL":"https:\/\/bsapubs.onlinelibrary.wiley.com\/doi\/10.1002\/ajb2.1431"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,2,17]]},"references-count":93,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2020,3]]}},"alternative-id":["10.1002\/ajb2.1431"],"URL":"https:\/\/doi.org\/10.1002\/ajb2.1431","archive":["Portico"],"relation":{},"ISSN":["0002-9122","1537-2197"],"issn-type":[{"value":"0002-9122","type":"print"},{"value":"1537-2197","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,2,17]]},"assertion":[{"value":"2019-07-18","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2019-12-04","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-02-17","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}